SpringBoot搭建SSM

项目用Inteli做的，Eclipse的同学可以做参考

第一步：新建项目

第二步：配置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>demo </artifactId>
<version>0.0.1-SNAPSHOT </version>
<packaging>jar </packaging>

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

<parent>
<groupId>org.springframework.boot </groupId>
<artifactId>spring-boot-starter-parent </artifactId>
<version>1.5.7.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-aop </artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot </groupId>
<artifactId>spring-boot-starter-jdbc </artifactId>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot </groupId>
<artifactId>mybatis-spring-boot-starter </artifactId>
<version>1.3.1 </version>
</dependency>
<dependency>
<groupId>org.springframework.boot </groupId>
<artifactId>spring-boot-starter-web </artifactId>
</dependency>

<dependency>
<groupId>mysql </groupId>
<artifactId>mysql-connector-java </artifactId>
<scope>runtime </scope>
</dependency>
<dependency>
<groupId>org.springframework.boot </groupId>
<artifactId>spring-boot-starter-test </artifactId>
<scope>test </scope>
</dependency>
</dependencies>

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


</project>

  
  

第三步：创建数据库

第四步：创建目录

第五步：创建Student.java实体类

Student.java

  
  
package com.example.models;

public class Student {
private int id;
private String name;
private String sex;
private int age;

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getSex() {
return sex;
}

public void setSex(String sex) {
this.sex = sex;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

@Override
public String toString() {
return "Student{" +
"id=" + id +
", name='" + name + '\'' +
", sex='" + sex + '\'' +
", age=" + age +
'}';
}
}
  
  

第六步：创建Mapper接口

StudentMapper.java

  
  
package com.example.Dao;

import com.example.models.Student;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

@Repository
public interface StudentMapper {
@Select( "SELECT * FROM student WHERE id=#{id}")
Student getStudentByID(int id);
}
  
  

第七步：创建Controller

StudentController.java

  
  
package com.example.Controller;

import com.example.Dao.StudentMapper;
import com.example.models.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class StudentController {
@Autowired
private StudentMapper studentMapper;

@RequestMapping( "/demo")
public Student get(){
Student student=studentMapper.getStudentByID( 2);
return student;
}

@RequestMapping(value = "res")
public String df(){
return "Hello";
}
}
  
  

(注意这边新建接口对象的时候会出错误提示，但是不影响正常运行，原因不明，如果有哪位知道怎么解决请告知)

第八步：修改主程序

DemoApplication.java

  
  
package com.example.demo;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@SpringBootApplication
@EnableTransactionManagement
@ComponentScan( "com.example.Controller")
@MapperScan( "com.example.Dao")

public class DemoApplication {

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

第九步：最后还有个SpringBoot的配置文件

application.properties

  
  
spring.datasource.url=jdbc:mysql://localhost:3306/world
spring.datasource.username=root
spring.datasource.password=a8996855439
spring.datasource.driverClassName=com.mysql.jdbc.Driver
mybatis.type-aliases-package=com.example.models
  
  

最后运行 DemoApplication，在地址栏输入http://localhost:8080/demo

结果如下，就成功了