SpringBoot搭建SSM

太过爱你忘了你带给我的痛 2022-05-12 11:14 247阅读 0赞

项目用Inteli做的，Eclipse的同学可以做参考

**第一步：新建项目**

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**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/>  
       </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**

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**第四步：创建目录**

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**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

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[Center]: /images/20220512/41c12e13cec44afbb223ce38fc41d951.png
[Center 1]: /images/20220512/ddc35aab716c4da08680230701221d74.png
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[Center 4]: /images/20220512/d92aea6d764b447293697ed8c0494ef4.png
[Center 5]: /images/20220512/89243dcdaa9945b49f5546a26dde2fb3.png
[Center 6]: /images/20220512/3001f99c103d4226940f2064ba6e5608.png