前言
在我們在進行微服務或者模塊化開發的時候，每次都要不斷的創建工程，然后管理模塊,創建工程，然后管理模塊...... 每個人的項目結構可能不一樣。因此我就把我自己平常喜歡的項目結構稍微總結了一下，做成一個腳手架。這樣以后創建工程的時候直接參考本文即可。這里強調一下：本文只是個人總結的項目創建的套路，沒有任何標准，意在快速開發。你也可以自己總結一下，純屬個人喜好。
本文的腳手架是基於SpirngBoot2.x框架，自己定義dependencis的pom做統一的依賴管理，ORM框架采用的是tkMapper。這樣的好處是，依賴版本升級或者變更的時候，只需要在dependencis中管理就好；而tkMapper配合MybatisCodeHelperNewPro插件可以在任意的模塊生成（單表或者多表的）pojo、mapper、mapper.xml等。
廢話不多說，下面開始先看下整體的結構。
1. 結構預覽
我們以一個商城的項目為例，快速創建它的工程結構：
2. 開始搭建
父工程POM
- 1）、第一步，先在自己的工作目錄下面創建一個空文件夾，作為父工程。
- 2）、用idea開發工具open打開此目錄。
- 3）、創建pom.xml，把下面配置復制粘貼進去。
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.zxx.shop</groupId>
<artifactId>parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<url></url>
<modules>
<module>dependencies</module>
<module>shop-pojo</module>
<module>shop-api</module>
<module>shop-common</module>
<module>shop-user-service</module>
<module>shop-goods-service</module>
<module>shop-coupon-service</module>
<module>shop-order-service</module>
<module>shop-pay-service</module>
<module>shop-order-web</module>
<module>shop-pay-web</module>
</modules>
<properties>
<java.version>1.8</java.version>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<licenses>
<license>
<name>Apache 2.0</name>
<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
</license>
</licenses>
<developers>
<developer>
<id>mcl2rock</id>
<name>mcl2rock</name>
<email>mcl2rock@yeah.net</email>
</developer>
</developers>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.zxx.shop</groupId>
<artifactId>dependencies</artifactId>
<version>${project.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<profiles>
<profile>
<id>default</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<spring-javaformat.version>0.0.12</spring-javaformat.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>io.spring.javaformat</groupId>
<artifactId>spring-javaformat-maven-plugin</artifactId>
<version>${spring-javaformat.version}</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<!-- 設置默認跳過測試 -->
<skip>true</skip>
<includes>
<include>**/*Tests.java</include>
</includes>
<excludes>
<exclude>**/Abstract*.java</exclude>
</excludes>
<systemPropertyVariables>
<java.security.egd>file:/dev/./urandom</java.security.egd>
<java.awt.headless>true</java.awt.headless>
</systemPropertyVariables>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<executions>
<execution>
<id>enforce-rules</id>
<goals>
<goal>enforce</goal>
</goals>
<configuration>
<rules>
<bannedDependencies>
<excludes>
<exclude>commons-logging:*:*</exclude>
</excludes>
<searchTransitive>true</searchTransitive>
</bannedDependencies>
</rules>
<fail>true</fail>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-install-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
<inherited>true</inherited>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<repositories>
<repository>
<id>spring-milestone</id>
<name>Spring Milestone</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshot</id>
<name>Spring Snapshot</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestone</id>
<name>Spring Milestone</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshot</id>
<name>Spring Snapshot</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
.gitattributes文件
# Windows-specific files that require CRLF:
*.bat eol=crlf
*.txt eol=crlf
# Unix-specific files that require LF:
*.java eol=lf
*.sh eol=lf
.gitignore文件
target/
!.mvn/wrapper/maven-wrapper.jar
## STS ##
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
## IntelliJ IDEA ##
.idea
*.iws
*.iml
*.ipr
## JRebel ##
rebel.xml
## MAC ##
.DS_Store
## Other ##
logs/
temp/
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目前工程是這個樣子：
接着，在pom.xml上右鍵，Add Maven Project，然后在右邊的側邊工具欄中用maven可以看到父工程parent爆紅，我們reimport一下。
依賴導入完之后，子模塊爆紅：
我們用idea快捷鍵 alt + enter 創建子模塊。
這些子模塊是自己定義的，我們可以根據自己的項目需求新建和更改，這里的子模塊只是用來樣例演示的。
dependencies工程POM
全部解決爆紅之后，我們再管理統一的依賴版本。復制以下代碼到dependencies模塊的pom.xml里。
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.zxx.shop</groupId>
<artifactId>dependencies</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>pom</packaging>
<url></url>
<properties>
<!-- Commons -->
<okhttp3.version>4.0.1</okhttp3.version>
<feign-okhttp.version>10.2.3</feign-okhttp.version>
<mybatis-plus-boot.version>3.1.1</mybatis-plus-boot.version>
<springfox-swagger2.version>2.9.2</springfox-swagger2.version>
<swagger-bootstrap-ui.version>1.8.7</swagger-bootstrap-ui.version>
<fastjson.version>1.2.56</fastjson.version>
<easypoi.version>3.2.0</easypoi.version>
<spring-boot-mapper.version>2.1.5</spring-boot-mapper.version>
<!-- Native Cloud -->
<dubbo.version>2.7.2</dubbo.version>
<dubbo-kryo.version>2.7.2</dubbo-kryo.version>
<dubbo-actuator.version>2.7.1</dubbo-actuator.version>
<spring-boot-mapper.version>2.1.5</spring-boot-mapper.version>
<spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
<spring-cloud-alibaba.verion>0.9.0.RELEASE</spring-cloud-alibaba.verion>
<alibaba-spring-context-support.version>1.0.2</alibaba-spring-context-support.version>
</properties>
<licenses>
<license>
<name>Apache 2.0</name>
<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
</license>
</licenses>
<developers>
<developer>
<id>mcl2rock</id>
<name>mcl2rock</name>
<email>mcl2rock@yeah.net</email>
</developer>
</developers>
<dependencyManagement>
<dependencies>
<!-- Spring Cloud -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba.verion}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- Apache Dubbo -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
<exclusions>
<exclusion>
<groupId>org.springframework</groupId>
<artifactId>spring</artifactId>
</exclusion>
<exclusion>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</exclusion>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-actuator</artifactId>
<version>${dubbo-actuator.version}</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-serialization-kryo</artifactId>
<version>${dubbo-kryo.version}</version>
<exclusions>
<exclusion>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</exclusion>
<exclusion>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-common</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.alibaba.spring</groupId>
<artifactId>spring-context-support</artifactId>
<version>${alibaba-spring-context-support.version}</version>
</dependency>
<!-- Commons -->
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>${okhttp3.version}</version>
</dependency>
<dependency>
<groupId>io.github.openfeign</groupId>
<artifactId>feign-okhttp</artifactId>
<version>${feign-okhttp.version}</version>
</dependency>
<!-- 數據庫 -->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>${hikaricp.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<exclusions>
<!-- 排除 tomcat-jdbc 以使用 HikariCP -->
<exclusion>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!--mybatis-plus-->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>${mybatis-plus-boot.version}</version>
</dependency>
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-generator</artifactId>
<version>${mybatis-plus-boot.version}</version>
</dependency>
<!--tk-mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>${spring-boot-mapper.version}</version>
</dependency>
<!-- Lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>${fastjson.version}</version>
</dependency>
<!--代碼生成器所需模板引擎-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<!--swagger-->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>${springfox-swagger2.version}</version>
</dependency>
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>swagger-bootstrap-ui</artifactId>
<version>${swagger-bootstrap-ui.version}</version>
</dependency>
<!-- excel -->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
<version>${easypoi.version}</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
<version>${easypoi.version}</version>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
<version>${easypoi.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<repositories>
<repository>
<id>spring-milestone</id>
<name>Spring Milestone</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshot</id>
<name>Spring Snapshot</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestone</id>
<name>Spring Milestone</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshot</id>
<name>Spring Snapshot</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
</pluginRepositories>
</project>
shop-common工程代碼生成
common模塊是用來放一些項目通用的類。復制下面的配置到pom.xml里。
POM文件
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.zxx.shop</groupId>
<artifactId>parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>shop-common</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<!-- tk-mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
</dependency>
<!-- Lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<scope>provided</scope>
</dependency>
<!-- excel -->
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-base</artifactId>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-web</artifactId>
</dependency>
<dependency>
<groupId>cn.afterturn</groupId>
<artifactId>easypoi-annotation</artifactId>
</dependency>
</dependencies>
</project>
tk.mybatis.mapper包
MyMapper.java
package tk.mybatis.mapper;
import tk.mybatis.mapper.common.Mapper;
import tk.mybatis.mapper.common.MySqlMapper;
/**
* 特別注意，該接口不能被掃描到，否則會出錯
*/
public interface MyMapper<T> extends Mapper<T>, MySqlMapper<T> {
}
com.zxx.entity包
BaseResult.java
package com.zxx.entity;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.zxx.constant.ResultCode;
import java.io.Serializable;
/**
* 返回數據
*/
public class BaseResult<T> implements Serializable {
private static final long serialVersionUID = 1L;
private boolean success;//是否成功
private Integer code;
private String message;
@JsonInclude(value = JsonInclude.Include.NON_DEFAULT)
private T data;
public static BaseResult ok() {
return BaseResult.back(ResultCode.SUCCESS);
}
public static BaseResult ok(String msg) {
return new BaseResult(true, ResultCode.SUCCESS.getCode(), msg, null);
}
public static BaseResult fail() {
return BaseResult.back(ResultCode.FAIL);
}
public static BaseResult fail(String msg) {
return new BaseResult(false, ResultCode.FAIL.getCode(), msg, null);
}
public static BaseResult error() {
return BaseResult.back(ResultCode.SERVER_ERROR);
}
public static BaseResult back(ResultCode r) {
return new BaseResult(r.getSuccess(), r.getCode(), r.getMessage(), null);
}
public BaseResult<T> put(T t) {
this.data = t;
return this;
}
public BaseResult(boolean success, Integer code, String message, T data) {
this.success = success;
this.code = code;
this.message = message;
this.data = data;
}
public BaseResult() { }
public boolean isSuccess() {
return success;
}
public void setSuccess(boolean success) {
this.success = success;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
}
com.zxx.exception包
BaseException.java
package com.zxx.exception;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.zxx.constant.ResultCode;
import lombok.Data;
@Data
@JsonInclude(value = JsonInclude.Include.NON_DEFAULT)
public class BaseException extends RuntimeException {
private static final long serialVersionUID = -7638041501183925225L;
private String code;
private String exceptionInfo;
private Integer debugId;
public BaseException(String code, String msg) {
super(msg);
this.code = code;
this.exceptionInfo = msg;
}
public BaseException(String errorCode) {
super(errorCode.toString());
}
public BaseException(ResultCode resultCode) {
this(Integer.toString(resultCode.getCode()), resultCode.getMessage());
}
public BaseException(ResultCode resultCode, String msg) {
this(Integer.toString(resultCode.getCode()), msg);
}
public BaseException(String exceptionInfo, Integer debugId, Object data) {
super(exceptionInfo);
this.exceptionInfo = exceptionInfo;
this.debugId = debugId;
}
}
Exceptions.java
package com.zxx.exception;
import com.zxx.constant.ResultCode;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class Exceptions {
public static void newException(String msg){
log.error(msg);
throw new BaseException(msg);
}
public static void castException(ResultCode resultCode){
log.error(resultCode.toString());
throw new BaseException(resultCode);
}
}
com.zxx.utils包
AssertUtil.java
package com.zxx.utils;
import com.zxx.constant.ResultCode;
import com.zxx.exception.BaseException;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Collection;
public class AssertUtil {
public static void throwException(String message) throws BaseException {
throw new BaseException(ResultCode.FAIL, message);
}
public static void throwException(String code, String message) throws BaseException {
throw new BaseException(code, message);
}
public static void isTrue(boolean expression, String message) {
if (!expression) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void isFalse(boolean expression, String message) {
if (expression) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void isNull(Object object, String message) throws BaseException {
if (object != null) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void notNull(Object object, String message) throws BaseException {
if (object == null) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void isEmpty(String str, String message) throws BaseException {
if (str == null || ! str.isEmpty()) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void notEmpty(String str, String message) throws BaseException {
if (str == null || str.isEmpty()) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void notEmpty(Object[] array, String message) throws BaseException {
if (ObjectUtils.isEmpty(array)) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void notEmpty(Collection<?> collection, String message) throws BaseException {
if (CollectionUtils.isEmpty(collection)) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void in(Object[] collection, Object value, String message) throws BaseException {
for(Object obj : collection){
if(obj.equals(value)){
return;
}
}
throw new BaseException(ResultCode.FAIL, message);
}
public static void noNullElements(Object[] array, String message) throws BaseException {
if (array != null) {
for (Object element : array) {
if (element == null) {
throw new BaseException(ResultCode.FAIL, message);
}
}
}
}
public static void nullOrGtMinusOne(Number number, String message) {
if (number != null && number.intValue() < -1) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void GtZero(Number number, String message) {
if ( number == null || number.intValue() < 1 ) {
throw new BaseException(ResultCode.FAIL, message);
}
}
public static void isSimpleDateFormat(String date, String message){
if(date == null || "null".equals(date.toLowerCase()) || date.length() != 10){
throw new BaseException(ResultCode.FAIL, message);
}
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
try {
format.parse(date);
} catch (ParseException e) {
throw new BaseException(ResultCode.FAIL, message);
}
}
}
JacksonUtil.java
package com.zxx.utils;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Jackson 工具類
*/
public class JacksonUtil {
private final static ObjectMapper objectMapper = new ObjectMapper();
public static ObjectMapper getInstance() {
return objectMapper;
}
/**
* 轉換為 JSON 字符串
*
* @param obj
* @return
* @throws Exception
*/
public static String obj2json(Object obj) throws Exception {
return objectMapper.writeValueAsString(obj);
}
/**
* 轉換為 JSON 字符串，忽略空值
*
* @param obj
* @return
* @throws Exception
*/
public static String obj2jsonIgnoreNull(Object obj) throws Exception {
ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
return mapper.writeValueAsString(obj);
}
/**
* obj 轉換為 Map 字符串，忽略空值
*
* @param obj
* @return
* @throws Exception
*/
public static Map<String, Object> obj2mapIgnoreNull(Object obj) throws Exception {
return json2map(obj2jsonIgnoreNull(obj));
}
/**
* 轉換為 JavaBean
*
* @param jsonString
* @param clazz
* @return
* @throws Exception
*/
public static <T> T json2pojo(String jsonString, Class<T> clazz) throws Exception {
objectMapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
return objectMapper.readValue(jsonString, clazz);
}
/**
* 字符串轉換為 Map<String, Object>
*
* @param jsonString
* @return
* @throws Exception
*/
public static <T> Map<String, Object> json2map(String jsonString) throws Exception {
ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
return mapper.readValue(jsonString, Map.class);
}
/**
* 字符串轉換為 Map<String, T>
*/
public static <T> Map<String, T> json2map(String jsonString, Class<T> clazz) throws Exception {
Map<String, Map<String, Object>> map = objectMapper.readValue(jsonString, new TypeReference<Map<String, T>>() {
});
Map<String, T> result = new HashMap<String, T>();
for (Map.Entry<String, Map<String, Object>> entry : map.entrySet()) {
result.put(entry.getKey(), map2pojo(entry.getValue(), clazz));
}
return result;
}
/**
* 深度轉換 JSON 成 Map
*
* @param json
* @return
*/
public static Map<String, Object> json2mapDeeply(String json) throws Exception {
return json2MapRecursion(json, objectMapper);
}
/**
* 把 JSON 解析成 List，如果 List 內部的元素存在 jsonString，繼續解析
*
* @param json
* @param mapper 解析工具
* @return
* @throws Exception
*/
private static List<Object> json2ListRecursion(String json, ObjectMapper mapper) throws Exception {
if (json == null) {
return null;
}
List<Object> list = mapper.readValue(json, List.class);
for (Object obj : list) {
if (obj != null && obj instanceof String) {
String str = (String) obj;
if (str.startsWith("[")) {
obj = json2ListRecursion(str, mapper);
} else if (obj.toString().startsWith("{")) {
obj = json2MapRecursion(str, mapper);
}
}
}
return list;
}
/**
* 把 JSON 解析成 Map，如果 Map 內部的 Value 存在 jsonString，繼續解析
*
* @param json
* @param mapper
* @return
* @throws Exception
*/
private static Map<String, Object> json2MapRecursion(String json, ObjectMapper mapper) throws Exception {
if (json == null) {
return null;
}
Map<String, Object> map = mapper.readValue(json, Map.class);
for (Map.Entry<String, Object> entry : map.entrySet()) {
Object obj = entry.getValue();
if (obj != null && obj instanceof String) {
String str = ((String) obj);
if (str.startsWith("[")) {
List<?> list = json2ListRecursion(str, mapper);
map.put(entry.getKey(), list);
} else if (str.startsWith("{")) {
Map<String, Object> mapRecursion = json2MapRecursion(str, mapper);
map.put(entry.getKey(), mapRecursion);
}
}
}
return map;
}
/**
* 將 JSON 數組轉換為集合
*
* @param jsonArrayStr
* @param clazz
* @return
* @throws Exception
*/
public static <T> List<T> json2list(String jsonArrayStr, Class<T> clazz) throws Exception {
JavaType javaType = getCollectionType(ArrayList.class, clazz);
List<T> list = (List<T>) objectMapper.readValue(jsonArrayStr, javaType);
return list;
}
/**
* 獲取泛型的 Collection Type
*
* @param collectionClass 泛型的Collection
* @param elementClasses 元素類
* @return JavaType Java類型
* @since 1.0
*/
public static JavaType getCollectionType(Class<?> collectionClass, Class<?>... elementClasses) {
return objectMapper.getTypeFactory().constructParametricType(collectionClass, elementClasses);
}
/**
* 將 Map 轉換為 JavaBean
*
* @param map
* @param clazz
* @return
*/
public static <T> T map2pojo(Map map, Class<T> clazz) {
return objectMapper.convertValue(map, clazz);
}
/**
* 將 Map 轉換為 JSON
*
* @param map
* @return
*/
public static String mapToJson(Map map) {
try {
return objectMapper.writeValueAsString(map);
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
/**
* 將 JSON 對象轉換為 JavaBean
*
* @param obj
* @param clazz
* @return
*/
public static <T> T obj2pojo(Object obj, Class<T> clazz) {
return objectMapper.convertValue(obj, clazz);
}
/**
* 將指定節點的 JSON 數據轉換為 JavaBean
*
* @param jsonString
* @param clazz
* @return
* @throws Exception
*/
public static <T> T json2pojoByTree(String jsonString, String treeNode, Class<T> clazz) throws Exception {
JsonNode jsonNode = objectMapper.readTree(jsonString);
JsonNode data = jsonNode.findPath(treeNode);
return json2pojo(data.toString(), clazz);
}
/**
* 將指定節點的 JSON 數組轉換為集合
*
* @param jsonStr JSON 字符串
* @param treeNode 查找 JSON 中的節點
* @return
* @throws Exception
*/
public static <T> List<T> json2listByTree(String jsonStr, String treeNode, Class<T> clazz) throws Exception {
JsonNode jsonNode = objectMapper.readTree(jsonStr);
JsonNode data = jsonNode.findPath(treeNode);
return json2list(data.toString(), clazz);
}
}
ResponseUtils.java
package com.zxx.utils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import lombok.extern.slf4j.Slf4j;
import javax.servlet.ServletResponse;
import java.io.PrintWriter;
/**
* @description:返回前台
*/
@Slf4j
public class ResponseUtils {
public static void write(ServletResponse response, Object o) {
try {
response.setContentType("application/json; charset=utf-8");
PrintWriter out = response.getWriter();
//json返回
out.println(JSON.toJSONString(o, SerializerFeature.WriteMapNullValue));
out.flush();
out.close();
} catch (Exception e) {
log.error("e={}", e);
}
}
}
ValidateUtil.java
package com.zxx.utils;
import org.apache.commons.lang3.StringUtils;
import java.util.regex.Pattern;
/**
* 常用的一些驗證，如手機、移動號碼、聯通號碼、電信號碼、密碼、座機、 郵政編碼、郵箱、年齡、身份證、URL、QQ、漢字、字母、數字等
*/
public class ValidateUtil {
/** 手機號規則 */
public static final String MOBILE_PATTERN="^((13[0-9])|(14[0-9])|(15[0-9])|(17[0-9])|(18[0-9]))(\\d{8})$";
/** 中國電信號碼格式驗證 手機段： 133,153,180,181,189,177,1700,173 **/
private static final String CHINA_TELECOM_PATTERN = "(?:^(?:\\+86)?1(?:33|53|7[37]|8[019])\\d{8}$)|(?:^(?:\\+86)?1700\\d{7}$)";
/** 中國聯通號碼格式驗證 手機段：130,131,132,155,156,185,186,145,176,1707,1708,1709,175 **/
private static final String CHINA_UNICOM_PATTERN = "(?:^(?:\\+86)?1(?:3[0-2]|4[5]|5[56]|7[56]|8[56])\\d{8}$)|(?:^(?:\\+86)?170[7-9]\\d{7}$)";
/** 中國移動號碼格式驗證 手機段：134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705 **/
private static final String CHINA_MOVE_PATTERN = "(?:^(?:\\+86)?1(?:3[4-9]|4[7]|5[0-27-9]|7[8]|8[2-478])\\d{8}$)|(?:^(?:\\+86)?1705\\d{7}$)";
/** 密碼規則（6-16位字母、數字） */
public static final String PASSWORD_PATTERN="^[0-9A-Za-z]{6,16}$";
/** 固號（座機）規則 */
public static final String LANDLINE_PATTERN="^(?:\\(\\d{3,4}\\)|\\d{3,4}-)?\\d{7,8}(?:-\\d{1,4})?$";
/** 郵政編碼規則 */
public static final String POSTCODE_PATTERN = "[1-9]\\d{5}" ;
/** 郵箱規則 */
public static final String EMAIL_PATTERN = "^([a-z0-9A-Z]+[-|_|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$" ;
/** 年齡規則 1-120之間 */
public static final String AGE_PATTERN="^(?:[1-9][0-9]?|1[01][0-9]|120)$";
/** 身份證規則 */
public static final String IDCARD_PATTERN="^\\d{15}|\\d{18}$" ;
/** URL規則，http、www、ftp */
public static final String URL_PATTERN = "http(s)?://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?" ;
/** QQ規則 */
public static final String QQ_PATTERN = "^[1-9][0-9]{4,13}$" ;
/** 全漢字規則 */
public static final String CHINESE_PATTERN = "^[\u4E00-\u9FA5]+$" ;
/** 全字母規則 */
public static final String STR_ENG_PATTERN="^[A-Za-z]+$";
/** 整數規則 */
public static final String INTEGER_PATTERN = "^-?[0-9]+$" ;
/** 正整數規則 */
public static final String POSITIVE_INTEGER_PATTERN = "^\\+?[1-9][0-9]*$" ;
/**
* @Description: 驗證手機號碼格式
* @param mobile 手機號碼
* @return boolean
*/
public static boolean validateMobile(String mobile) {
if (StringUtils.isEmpty(mobile)){
return Boolean.FALSE;
}
return mobile.matches(MOBILE_PATTERN);
}
/**
* 驗證是否是電信手機號,133、153、180、189、177
* @param mobile 手機號
* @return boolean
*/
public static boolean validateTelecom(String mobile){
if(StringUtils.isEmpty(mobile)){
return Boolean.FALSE ;
}
return mobile.matches(CHINA_TELECOM_PATTERN) ;
}
/**
* 驗證是否是聯通手機號 130,131,132,155,156,185,186,145,176,1707,1708,1709,175
* @param mobile 電話號碼
* @return boolean
*/
public static boolean validateUnionMobile(String mobile){
if(StringUtils.isEmpty(mobile)){
return Boolean.FALSE ;
}
return mobile.matches(CHINA_UNICOM_PATTERN) ;
}
/**
* 驗證是否是移動手機號
* @param mobile 手機號 134,135,136,137,138,139,150,151,152,157,158,159,182,183,184,187,188,147,178,1705
* @return boolean
*/
public static boolean validateMoveMobile(String mobile){
if(StringUtils.isEmpty(mobile)){
return Boolean.FALSE ;
}
return mobile.matches(CHINA_MOVE_PATTERN) ;
}
/**
* @Description: 驗證密碼格式 6-16 位字母、數字
* @param pwd 密碼
* @return boolean
*/
public static boolean validatePwd(String pwd) {
if (StringUtils.isEmpty(pwd)){
return Boolean.FALSE;
}
return Pattern.matches(PASSWORD_PATTERN, pwd);
}
/**
* 驗證座機號碼，格式如：58654567,023-58654567
* @param landline 固話、座機
* @return boolean
*/
public static boolean validateLandLine(final String landline) {
if(StringUtils.isEmpty(landline)){
return Boolean.FALSE;
}
return landline.matches(LANDLINE_PATTERN);
}
/**
* 驗證郵政編碼
* @param postCode 郵政編碼
* @return boolean
*/
public static boolean validatePostCode(final String postCode){
if(StringUtils.isEmpty(postCode)){
return Boolean.FALSE ;
}
return postCode.matches(POSTCODE_PATTERN) ;
}
/**
* 驗證郵箱（電子郵件）
* @param email 郵箱（電子郵件）
* @return boolean
*/
public static boolean validateEamil(final String email){
if(StringUtils.isEmpty(email)){
return Boolean.FALSE ;
}
return email.matches(EMAIL_PATTERN) ;
}
/**
* 判斷年齡，1-120之間
* @param age 年齡
* @return boolean
*/
public static boolean validateAge(final String age){
if(StringUtils.isEmpty(age)){
return Boolean.FALSE ;
}
return age.matches(AGE_PATTERN) ;
}
/**
* 身份證驗證
* @param idCard 身份證
* @return boolean
*/
public static boolean validateIDCard(final String idCard){
if(StringUtils.isEmpty(idCard)){
return Boolean.FALSE ;
}
return idCard.matches(IDCARD_PATTERN) ;
}
/**
* URL地址驗證
* @param url URL地址
* @return boolean
*/
public static boolean validateUrl(final String url){
if(StringUtils.isEmpty(url)){
return Boolean.FALSE ;
}
return url.matches(URL_PATTERN) ;
}
/**
* 驗證QQ號
* @param qq QQ號
* @return boolean
*/
public static boolean validateQq(final String qq){
if(StringUtils.isEmpty(qq)){
return Boolean.FALSE ;
}
return qq.matches(QQ_PATTERN) ;
}
/**
* 驗證字符串是否全是漢字
* @param str 字符串
* @return boolean
*/
public static boolean validateChinese(final String str){
if(StringUtils.isEmpty(str)){
return Boolean.FALSE ;
}
return str.matches(CHINESE_PATTERN) ;
}
/**
* 判斷字符串是否全字母
* @param str 字符串
* @return boolean
*/
public static boolean validateStrEnglish(final String str){
if(StringUtils.isEmpty(str)){
return Boolean.FALSE ;
}
return str.matches(STR_ENG_PATTERN) ;
}
/**
* 判斷是否是整數，包括負數
* @param str 字符串
* @return boolean
*/
public static boolean validateInteger(final String str){
if(StringUtils.isEmpty(str)){
return Boolean.FALSE ;
}
return str.matches(INTEGER_PATTERN) ;
}
/**
* 判斷是否是大於0的正整數
* @param str 字符串
* @return boolean
*/
public static boolean validatePositiveInt(final String str){
if(StringUtils.isEmpty(str)){
return Boolean.FALSE ;
}
return str.matches(POSITIVE_INTEGER_PATTERN) ;
}
}
3. 代碼生成
MybatisCodeHelperNewPro插件
選擇Mybait逆向生成
按照下圖中的步驟：
生成好了之后，把實體類拷貝到shop-pojo模塊下，接口類拷貝到shop-api模塊下。這個就不用說了，大家都會就不貼出來了。
下面以CouponServiceApplication為例測試一下：
補充POM依賴
<dependencies>
<dependency>
<groupId>com.zxx.shop</groupId>
<artifactId>shop-common</artifactId>
<version>${project.parent.version}</version>
</dependency>
<!-- 數據庫 -->
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
<exclusions>
<!-- 排除 tomcat-jdbc 以使用 HikariCP -->
<exclusion>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
</dependency>
<!-- Lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!-- Junit-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
補充application.yml配置文件
spring:
application:
name: CouponServiceApplication
datasource:
type: com.zaxxer.hikari.HikariDataSource
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhsot:3306/trade?useUnicode=true&characterEncoding=utf-8&useSSL=false
username: root
password: 123456
hikari:
minimum-idle: 5
idle-timeout: 600000
maximum-pool-size: 10
auto-commit: true
pool-name: MyHikariCP
max-lifetime: 1800000
connection-timeout: 30000
connection-test-query: SELECT 1
mybatis:
type-aliases-package: com.zxx.shop.entity
mapper-locations: classpath:mapper/*.xml
logging.level.com.zxx.shop.mapper: debug
啟動類
package com.zxx.shop;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import tk.mybatis.spring.annotation.MapperScan;
@MapperScan("com.zxx.shop.mapper")
@SpringBootApplication
public class CouponServiceApplication {
public static void main(String[] args) {
SpringApplication.run(CouponServiceApplication.class, args);
}
}
測試類：
package com.zxx.shop;
import com.zxx.shop.entity.TradeCoupon;
import com.zxx.shop.mapper.TradeCouponMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import javax.annotation.Resource;
@RunWith(SpringRunner.class)
@SpringBootTest
public class CouponServiceTests {
@Resource
TradeCouponMapper couponMapper;
/**
*
*/
@Test
public void test01(){
TradeCoupon one = couponMapper.selectByPrimaryKey(1L);
System.out.println(one);
}
}
項目地址：