快速創建SpringBoot+SSM解析

此處使用IDEA快速搭建SpringBoot應用,首先用SpringBoot搭建WEB工程:

然后點擊Next生成項目,首次生成可能有點慢,下次創建的時候就會快很多,生成后的目錄結構如下:

我們更改下這個啟動類:

加上@RestController注解使之成為一個Controller,請求能進來,然后加上相應的方法:

@SpringBootApplication

@RestController

public class SpringbootdemoApplication {

public static void main(String[] args) {

    SpringApplication.run(SpringbootdemoApplication.class, args);

}

@RequestMapping(value = "/",produces = "text/plain;charset=UTF-8")

String index(){

    return "Hello Spring Boot!";

}

}

點擊右上角的啟動項,啟動這個項目:

然后在瀏覽器中輸入地址:http://localhost:8080/ 可以看到如下效果:

到此,一個簡單的SpringBoot搭建完成了

2.然后開始我們的第二步,搭建SSM

在上一步的基礎上我們需要添加些相關的配置來搭建SSM,如下為結構圖:

UserController:

@RestController
/**自動返回的是json格式數據***/
public class UserController {
	
	@Autowired
	private UserService userService;

	@RequestMapping("list")
	public List<User> list(){
		 //只對緊鄰的下一條select語句進行分頁查詢，對之后的select不起作用
		List<User> list = userService.findAllUser();
		return list;
	}
}

User:

public class User implements Serializable{
	
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private Integer id;	
	private String username;
	private Date birthday;
	private String sex;
	private String address;
	
	
	
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public Date getBirthday() {
		return birthday;
	}
	public void setBirthday(Date birthday) {
		this.birthday = birthday;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	
	

}

UserMapper:

@Mapper
public interface UserMapper {
	
	public List<User> findAll();

}

UserService:

public interface UserService {
	
	/**
	 * 根據接口查詢所用的用戶
	 */
	public List<User> findAllUser();
}

UserServiceImpl:

@Service
public class UserServiceImpl implements UserService {
		@Resource
	private UserMapper userMapper;
		public List<User> findAllUser() {
		List<User> list = userMapper.findAll();
		return list;
	}

}

UserMapper.XML:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.demo.mapper.UserMapper">
	<select id="findAll" resultType="com.demo.bean.User">
		select * from user
	</select>
</mapper>

SqlMapperConfig:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <settings>
        <!-- 對在此配置文件下的所有cache進行全局性開/關設置 true|false true -->
        <setting name="cacheEnabled" value="true" />
        <!-- 全局性設置懶加載。如果設為‘關',則所有相關聯的都會被初始化加載。 -->
        <setting name="lazyLoadingEnabled" value="true" />
        <!-- 當設置為‘開’的時候，懶加載的對象可能被任何懶屬性全部加載。否則，每個屬性都按需加載。 -->
        <setting name="aggressiveLazyLoading" value="true" />
        <!-- 允許和不允許單條語句返回多個數據集（取決於驅動需求） -->
        <setting name="multipleResultSetsEnabled" value="true" />
        <!-- 使用列標簽代替列名稱。不用的驅動器有不同的作法。 -->
        <setting name="localCacheScope" value="STATEMENT" />
        <!-- 允許JDBC生成主鍵。需要驅動器支持.如果設為了true，這個設置將強制使用被生成的主鍵， 有一些驅動器不兼容不過仍然可以執行。 -->
        <setting name="useGeneratedKeys" value="true" />
        <!-- 指定MyBatis是否並且如何來自動映射數據表字段與對象的屬性。PARTIAL將只自動映射簡單的，NONE沒有嵌套的結果。 FULL將自動映射所有復雜的結果。 -->
        <setting name="autoMappingBehavior" value="PARTIAL" />
        <!-- 配置和設定執行器，SIMPLE執行器執行其它語句。REUSE執行器可能重復使用preparedstatements語句，BATCH執行器可以重復執行語句和批量更新。 -->
        <setting name="defaultExecutorType" value="SIMPLE" />
        <!-- 設置一個時限，以決定讓驅動器等待數據庫回應的多長時間為超時. 正整數 -->
        <setting name="defaultStatementTimeout" value="5000" />
        <setting name="jdbcTypeForNull" value="OTHER"/>
        <setting name="logImpl" value="LOG4J"/>
    </settings>

</configuration>

application.properties:

#server.port=80

logging.level.org.springframework=DEBUG
#springboot   mybatis
#jiazai mybatis peizhiwenjian
mybatis.mapper-locations = classpath:mapper/*Mapper.xml
mybatis.config-location = classpath:mybatis/sqlMapConfig.xml
#mybatis.type-aliases-package = com.demo.bean

#shujuyuan
spring.datasource.driver-class-name= com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8
spring.datasource.username = root
spring.datasource.password = root

Pom.XML:

<?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.example</groupId>
    <artifactId>springbootdemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>springbootdemo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>


        <!--mybatis與mysql-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.2.0</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <!--druid依賴-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.25</version>
        </dependency>
        <!--redis依賴-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>


        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

        <!--jasypt加解密-->
        <dependency>
            <groupId>com.github.ulisesbocchio</groupId>
            <artifactId>jasypt-spring-boot-starter</artifactId>
            <version>1.14</version>
        </dependency>

        <!--zipkin-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-sleuth-zipkin</artifactId>
        </dependency>


        <!--eureka-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

項目運行后訪問http://localhost:8080/list,可以見到如下結果(這里省略sql表的設計,可以自己根據實體類來建表)