使用idea 搭建一個 SpringBoot + Mybatis + logback 的maven 項目

本文轉載自查看原文 2019-01-06 00:51 900 整合案例/ Spring Boot

（注意項目名不能有大寫。。。。。。），把項目類型改成 War 類型。（web項目）

使用 mybatis-generator 插件生成實體類和接口

在 resources 目錄中新建一個 generatorConfig.xml 的文件

generatorConfig.xml 文件信息

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE generatorConfiguration
 3         PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
 4         "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
 5 
 6 <generatorConfiguration>
 7     <context id="default" targetRuntime="MyBatis3Simple">
 8         <!--創建class時，對注釋進行控制-->
 9         <commentGenerator>
10             <property name="suppressDate" value="true" />
11             <!--去除注釋-->
12             <property name="suppressAllComments" value="true"/>
13         </commentGenerator>
14 
15         <!--jdbc的數據庫連接-->
16         <jdbcConnection driverClass="org.mariadb.jdbc.Driver"
17                         connectionURL="jdbc:mariadb://localhost:3306/test"
18                         userId="oukele" password="oukele">
19         </jdbcConnection>
20         <!-- Model模型生成器
21             targetPackage -> 指定生成的model生成所在的包名
22             targetProject -> 指定在該項目下所在的路徑
23         -->
24         <javaModelGenerator targetPackage="com.oukele.myspringbootproject.entity" targetProject="src/main/java">
25             <!-- 是否對類CHAR類型的列的數據進行trim操作 -->
26             <property name="trimStrings" value="true" />
27         </javaModelGenerator>
28         <!--Mapper映射文件生成所在的目錄 為每一個數據庫的表生成對應的SqlMap文件-->
29         <sqlMapGenerator targetPackage="mapper"  targetProject="src/main/resources"/>
30         <!-- 客戶端代碼，生成易於使用的針對Model對象和XML配置文件 的代碼
31             type="ANNOTATEDMAPPER",生成Java Model 和基於注解的Mapper對象
32             type="MIXEDMAPPER",生成基於注解的Java Model 和相應的Mapper對象
33             type="XMLMAPPER",生成SQLMap XML文件和獨立的Mapper接口
34         -->
35         <javaClientGenerator type="XMLMAPPER" targetPackage="com.oukele.myspringbootproject.dao"  targetProject="src/main/java"/>
36 
37         <!-- tableName 表名  % -> 全部表   -->
38         <table tableName="user">
39             <generatedKey column="id" sqlStatement="Mysql"/>
40         </table>
41 
42     </context>
43 </generatorConfiguration>

View Code

在 pom.xml 文件添加依賴

 1             <!-- mybatis.generator 插件  -->
 2             <plugin>
 3                 <groupId>org.mybatis.generator</groupId>
 4                 <artifactId>mybatis-generator-maven-plugin</artifactId>
 5                 <version>1.3.7</version>
 6 
 7                 <configuration>
 8                     <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>
 9                     <overwrite>true</overwrite>
10                 </configuration>
11                 <!-- 數據庫依賴  -->
12                 <dependencies>
13                     <dependency>
14                         <groupId>org.mariadb.jdbc</groupId>
15                         <artifactId>mariadb-java-client</artifactId>
16                         <version>2.3.0</version>
17                     </dependency>
18                 </dependencies>
19             </plugin>

生成成功。

現在來配置 application.properties 文件。

 1 #設置 Tomcat 端口號
 2 server.port=8081
 3 
 4 # 配置 mybatis
 5 # 設置 別名類型包 (實體類)
 6 mybatis.type-aliases-package=com.oukele.myspringbootproject.entity
 7 # 設置 mybatis 映射 的 SQL語法 xml文件
 8 mybatis.mapper-locations=classpath:mapper/*.xml
 9 
10 # 連接數據庫
11 spring.datasource.driver-class-name=org.mariadb.jdbc.Driver
12 spring.datasource.url=jdbc:mariadb://localhost:3306/test
13 spring.datasource.username=oukele
14 spring.datasource.password=oukele
15 # 設置數據源 （c3p0連接池）
16 spring.datasource.type=com.mchange.v2.c3p0.ComboPooledDataSource
17 
18 #啟動 熱部署
19 spring.devtools.livereload.enabled=true

如果嫌上面的寫法太啰嗦可將 application.properties 文件后綴名改成 yml

內容改成如下：

# mybatis 配置
mybatis:
  typeAliasesPackage: com.oukele.myspringbootproject.entity
  mapperLocations: classpath:mapper/*.xml
        

spring:
  datasource:
    driver-class-name: org.mariadb.jdbc.Driver
    url: jdbc:mariadb://localhost:3306/test
    username: oukele
    password: oukele
    # 數據源
    type: com.mchange.v2.c3p0.ComboPooledDataSource

# 這里是默認配置
spring.devtools.restart.enabled: true
# 設置重啟的目錄
spring.devtools.restart.additional-paths: src/main/java
# classpath目錄下的WEB-INF文件夾內容修改不重啟

server:
  port: 8081

pom.xml 文件

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  4     <modelVersion>4.0.0</modelVersion>
  5     <parent>
  6         <groupId>org.springframework.boot</groupId>
  7         <artifactId>spring-boot-starter-parent</artifactId>
  8         <version>2.1.1.RELEASE</version>
  9         <relativePath/> <!-- lookup parent from repository -->
 10     </parent>
 11     <groupId>com.oukele</groupId>
 12     <artifactId>my-springboot-project</artifactId>
 13     <version>0.0.1-SNAPSHOT</version>
 14     <packaging>war</packaging>
 15     <name>my-springboot-project</name>
 16     <description>Demo project for Spring Boot</description>
 17 
 18     <properties>
 19         <java.version>1.8</java.version>
 20     </properties>
 21 
 22     <dependencies>
 23         <!--監控容器-->
 24         <dependency>
 25             <groupId>org.springframework.boot</groupId>
 26             <artifactId>spring-boot-starter-actuator</artifactId>
 27         </dependency>
 28         <!-- 資源庫 -->
 29         <dependency>
 30             <groupId>org.springframework.boot</groupId>
 31             <artifactId>spring-boot-starter-data-jpa</artifactId>
 32         </dependency>
 33         <!--視圖引擎-->
 34         <dependency>
 35             <groupId>org.springframework.boot</groupId>
 36             <artifactId>spring-boot-starter-thymeleaf</artifactId>
 37         </dependency>
 38         <!-- web -->
 39         <dependency>
 40             <groupId>org.springframework.boot</groupId>
 41             <artifactId>spring-boot-starter-web</artifactId>
 42         </dependency>
 43         <!-- mybatis -->
 44         <dependency>
 45             <groupId>org.mybatis.spring.boot</groupId>
 46             <artifactId>mybatis-spring-boot-starter</artifactId>
 47             <version>1.3.2</version>
 48         </dependency>
 49         <!-- 熱部署-->
 50         <dependency>
 51             <groupId>org.springframework.boot</groupId>
 52             <artifactId>spring-boot-devtools</artifactId>
 53             <scope>runtime</scope>
 54         </dependency>
 55         <!-- Tomcat -->
 56         <dependency>
 57             <groupId>org.springframework.boot</groupId>
 58             <artifactId>spring-boot-starter-tomcat</artifactId>
 59             <scope>provided</scope>
 60         </dependency>
 61         <!-- springboot 自動配置 -->
 62         <dependency>
 63             <groupId>org.springframework.boot</groupId>
 64             <artifactId>spring-boot-starter-test</artifactId>
 65             <scope>test</scope>
 66         </dependency>
 67         <!--數據庫驅動-->
 68         <dependency>
 69             <groupId>org.mariadb.jdbc</groupId>
 70             <artifactId>mariadb-java-client</artifactId>
 71             <version>2.3.0</version>
 72         </dependency>
 73         <!--c3p0 連接池-->
 74         <dependency>
 75             <groupId>com.mchange</groupId>
 76             <artifactId>c3p0</artifactId>
 77             <version>0.9.5.2</version>
 78         </dependency>
 79     </dependencies>
 80 
 81     <build>
 82         <plugins>
 83             <plugin>
 84                 <groupId>org.springframework.boot</groupId>
 85                 <artifactId>spring-boot-maven-plugin</artifactId>
 86             </plugin>
 87 
 88             <!-- mybatis.generator 插件  -->
 89             <plugin>
 90                 <groupId>org.mybatis.generator</groupId>
 91                 <artifactId>mybatis-generator-maven-plugin</artifactId>
 92                 <version>1.3.7</version>
 93 
 94                 <configuration>
 95                     <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>
 96                     <overwrite>true</overwrite>
 97                 </configuration>
 98                 <!-- 數據庫依賴  -->
 99                 <dependencies>
100                     <dependency>
101                         <groupId>org.mariadb.jdbc</groupId>
102                         <artifactId>mariadb-java-client</artifactId>
103                         <version>2.3.0</version>
104                     </dependency>
105                 </dependencies>
106             </plugin>
107 
108         </plugins>
109     </build>
110 
111 </project>

View Code

這里，我們啟動項目，看下能不能啟動。

首先在 templates 文件中新建一個 index.html 網頁

然后

最后，

啟動成功

效果如下：

開始我們的主菜。

項目結構

service包中UserService接口

1 package com.oukele.myspringbootproject.service;
2 
3 import com.oukele.myspringbootproject.entity.User;
4 import java.util.List;
5 
6 
7 public interface UserService {
8     List<User> listAll();
9 }

serviceImp包中UserServiceImp類

 1 package com.oukele.myspringbootproject.serviceImp;
 2 
 3 import com.oukele.myspringbootproject.dao.UserMapper;
 4 import com.oukele.myspringbootproject.entity.User;
 5 import com.oukele.myspringbootproject.service.UserService;
 6 import org.springframework.beans.factory.annotation.Autowired;
 7 import org.springframework.stereotype.Service;
 8 
 9 import java.util.List;
10 
11 @Service
12 public class UserServiceImp implements UserService {
13 
14     @Autowired
15     private UserMapper userMapper;//這里出現紅色波浪線，並不影響使用
16 
17     @Override
18     public List<User> listAll() {
19         return userMapper.selectAll();
20     }
21 }

controller包中Usercontroller類

package com.oukele.myspringbootproject.controller;

import com.oukele.myspringbootproject.entity.User;
import com.oukele.myspringbootproject.serviceImp.UserServiceImp;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class UserController {

    @Autowired
    private UserServiceImp userServiceImp;

    @GetMapping(path = "/list")
    public List<User> getAll(){
        return userServiceImp.listAll();
    }
}

類的修改。。。

package com.oukele.myspringbootproject;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
@MapperScan("com.oukele.myspringbootproject.dao")//掃描接口
public class MySpringbootProjectApplication {

    public static void main(String[] args) {
        SpringApplication.run(MySpringbootProjectApplication.class, args);
    }

}

重啟項目，訪問/list 的結果：

使用logback日志：

在resources文件中新建logback-spring.xml 文件（springboot默認集成了 logback 直接在resources創建 logback-spring.xml即可）

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <configuration>
 3     <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
 4         <layout class="ch.qos.logback.classic.PatternLayout">
 5             <Pattern>
 6                 %msg%n
 7             </Pattern>
 8         </layout>
 9     </appender>
10 
11     <logger name="com.oukele.myspringbootproject.dao" level="TRACE" />
12 
13     <root level="error">
14         <appender-ref ref="STDOUT" />
15     </root>
16 </configuration>