1.新建maven项目
先新建一个maven项目,勾选上creat a simple project,填写groupid,artifactid
2.建立项目结构
3.添加依赖
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<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</artifactid>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-test</artifactid>
<scope>test</scope>
</dependency>
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-web</artifactid>
</dependency>
<dependency>
<groupid>org.mybatis.spring.boot</groupid>
<artifactid>mybatis-spring-boot-starter</artifactid>
<version> 1.3 . 2 </version>
</dependency>
<dependency>
<groupid>mysql</groupid>
<artifactid>mysql-connector-java</artifactid>
</dependency>
<dependency>
<groupid>junit</groupid>
<artifactid>junit</artifactid>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-maven-plugin</artifactid>
</plugin>
</plugins>
</build>
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4.代码编写
在包的最外层添加启动类
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package com.lee.test;
import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.cache.annotation.enablecaching;
@springbootapplication
@enablecaching
public class application {
public static void main(string[] args) {
springapplication.run(application. class , args);
}
}
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实体类
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package com.lee.test.pojo;
import org.springframework.stereotype.component;
@component
public class user {
private int id;
private string name;
private string telephone;
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 gettelephone() {
return telephone;
}
public void settelephone(string telephone) {
this .telephone = telephone;
}
}
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mapper接口
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package com.lee.test.mapper;
import java.util.list;
import org.apache.ibatis.annotations.mapper;
import com.lee.test.pojo.user;
@mapper
public interface usermapper {
list<user> getuser( int id);
}
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service接口
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package com.lee.test.service;
import java.util.list;
import com.lee.test.pojo.user;
public interface userservice {
public list<user> getuser( int id);
}
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service接口实现
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package com.lee.test.service;
import java.util.list;
import com.lee.test.pojo.user;
public interface userservice {
public list<user> getuser( int id);
}
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controller层
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package com.lee.test.controller;
import java.util.list;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestparam;
import org.springframework.web.bind.annotation.restcontroller;
import com.lee.test.pojo.user;
import com.lee.test.service.userservice;
@restcontroller
public class usercontroller {
@autowired
private userservice userservice;
@requestmapping ( "/getuser" )
public list<user> getuser( @requestparam ( "id" ) int id) {
return userservice.getuser(id);
}
}
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还有mapper.xml的实现
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<?xml version= "1.0" encoding= "utf-8" ?>
<!doctype mapper public "-//mybatis.org//dtd mapper 3.0//en" "http://www.mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace= "com.lee.test.mapper.usermapper" >
<select id= "getuser" parametertype= "java.lang.integer" resulttype= "com.lee.test.pojo.user" >
select * from t_user where id = #{id}
</select>
</mapper>
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最后是一些配置在application.properties中
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spring.datasource.driverclassname=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
mybatis.mapper-locations: classpath:mapper/*.xml
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/leexboo/p/10468024.html