spring boot源码

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spring boot源码

使用工具intelliJ IDEA      JDK 1.8

项目结构 

一.配置文件

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns=".0.0" xmlns:xsi=""xsi:schemaLocation=".0.0 .0.0.xsd"><modelVersion>4.0.0</modelVersion><!-- 新建项目的描述信息 --><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>demo</artifactId><version>0.0.1-SNAPSHOT</version><name>demo</name><description>Demo project for Spring Boot</description><!-- 父项目Spring Boot的版本仲裁中心。以后导入依赖默认不需要写版本号。没有在dependencies里管理的依赖除外，需要声明版本号。--><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><!-- 启动器Spring boot将所有的功能场景都抽取出来，做成了一个个的starter(启动器)，只需要在项目里引入这些starter，相关场景的所有依赖都会导入进来。spring-boot-starter：spring boot场景启动器web:自动导入web模块正常运行所依赖的组件--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-thymeleaf</artifactId></dependency><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><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-configuration-processor</artifactId><optional>true</optional></dependency></dependencies><build><plugins><!-- 该插件可以将应用打包成一个可执行的jar --><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

application.yml

server:port: 8080spring:
#  mvc:
#    view:
#      prefix: /WEB-INF/jsp/
#      suffix: .jspthymeleaf:cache: falseprefix: classpath:/templatessuffix: .jspencoding: UTF-8mode: LEGACYHTML5content-type: text/htmldatasource:name: mysql_testtype: com.alibaba.druid.pool.DruidDataSourcedruid:filters: statdriver-class-name: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true&serverTimezone=GMT%2B8username: rootpassword: sasainitial-size: 1min-idle: 1max-active: 20max-wait: 60000time-between-eviction-runs-millis: 60000min-evictable-idle-time-millis: 300000validation-query: SELECT 'x'test-while-idle: truetest-on-borrow: falsetest-on-return: falsepool-prepared-statements: falsemax-pool-prepared-statement-per-connection-size: 20mybatis:mapper-locations: classpath:mapper/*.xmltype-aliases-package: com.example.demo.model#pagehelper
pagehelper:helperDialect: mysqlreasonable: truesupportMethodsArguments: trueparams: count=countSqlreturnPageInfo: checkdebug: true

二.控制层  TestController

package com.example.demo.controller;import com.example.demo.model.UserDomain;
import com.example.demo.service.UserService;
import com.example.demo.service.impl.UserTserService;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.Map;@Controller
@RequestMapping(value = "/test")
public class TestController {@Resourceprivate UserTserService userTsetService;@RequestMapping("/index")public String index() {return "/INDEX";}@RequestMapping("/addUser")public String addUser(UserDomain user) {System.out.println(user.getUserName());userTsetService.addUser(user);return "/findAll";}/*@RequestMapping("/findUser")public String findUser() {return "/INDEX";}*//**** @return*/@RequestMapping("/updatUser")public String updatUser(@ModelAttribute(value="userDomain") UserDomain userDomain, ModelMap map) {userTsetService.updateUser(userDomain);System.out.println(userDomain.getUserName()+""+userDomain.getPassword()+"//"+userDomain.getUserId());return findAllUser(map);}@RequestMapping("/update")public String update(ModelMap map,String userId) {UserDomain user = userTsetService.findUser(Integer.parseInt(userId));map.addAttribute("userDomain", user);return "/update";}@RequestMapping("/delUser")public String delUser(String userId,ModelMap map) {userTsetService.delUser(Integer.parseInt(userId));return findAllUser(map);}@RequestMapping("/user")public  String findusers(Model model){List<UserDomain> UserList = userTsetService.findAllUser();model.addAttribute("users", UserList);return  "/findAll";}@RequestMapping("/switch")public String switchcase(ModelMap map) {map.addAttribute("sex", "man");return "/findAll";}@RequestMapping("/findAllUser")public String findAllUser(ModelMap map) {List<UserDomain> UserList = userTsetService.findAllUser();System.out.println(UserList.size());map.addAttribute("sex", "*");map.addAttribute("time", "fffff");map.addAttribute("userlist", UserList);return "/findAll";}@RequestMapping("/tiao")public String tiao( @RequestParam(value = "tiao", required = false)String name ,ModelMap map){if ("add".equals(name)) {return "/add";}else if("findAll".equals(name)){return findAllUser(map);}else {return "/index";}}
}

三.前端页面 

add.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h1>添加用户</h1>
<form action="/test/addUser"><div><label>姓名：</label><input type="text" name="userName"></div><div><label>密码：</label><input type="text" name="password"></div><div><label>电话：</label><input type="text" name="phone"></div><button>添加</button>
</form>
</body>
</html>

findAll.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE html><html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h1  th:text="${time}">Hello World</h1>
<a href="/test/tiao?tiao=add">添加</a>
<div th:switch="${sex}"><p th:case="'woman'">她是一个姑娘...</p><p th:case="'man'">这是一个爷们!</p><!-- *: case的默认的选项 --><p th:case="*">yc未知性别的一个家伙。</p>
</div><table border="1"><tr><td>id</td><td>name</td><td>phone</td><td>no</td></tr><tr  th:each="user,iterStat : ${userlist}"><td th:text="${user.userId}">neo</td><td th:text="${user.userName}">6</td><td th:text="${user.phone}">213</td><td th:text="${iterStat.index}">index</td><td><a th:href=@{/test/update?(userId=${user.userId})}>修改</a></td><td><a th:href=@{/test/delUser?(userId=${user.userId})}>删除</a></td></tr></table>
</body>
</html>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h1>好久不见</h1>
<a href="/test/tiao?tiao=add">添加</a>
<a href="/test/tiao?tiao=findAll">列表</a></body>
</html>

update.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>Title</title>
</head>
<body>
<h1>修改用户</h1>
<form action="#" th:action="@{/test/updatUser}" th:object="${userDomain}" method="post"><input type="text" name="userId" th:value="*{userId}"/><div><label>姓名：</label><input type="text" name="userName" th:value="*{userName}"/></div><div><label>密码：</label><input type="text" name="password" th:value="*{password}"/></div><div><label>电话：</label><input type="text" name="phone" th:value="*{phone}"/></div><button>修改</button>
</form>
</body>
</html>

四.业务层

UserTestService  接口

package com.example.demo.service;import com.example.demo.model.UserDomain;import java.util.List;public interface UserTestService {/*** 添加用户* @param user*/public void addUser(UserDomain user);/*** 根据id查询用户* @param id* @return UserDomain*/public UserDomain findUser(int id);/*** 修改用户* @param user*/public void updateUser(UserDomain user);/*** 删除用户* @param id*/public void delUser(int id);/*** 查询所有用户* @return List<UserDomain>*/public List<UserDomain> findAllUser();}

UserTserServiceImpl 实现类

package com.example.demo.service.impl;import com.example.demo.dao.UserTestDao;
import com.example.demo.model.UserDomain;
import com.example.demo.service.UserTestService;
import org.springframework.stereotype.Service;import javax.annotation.Resource;
import java.util.List;@Service(value = "userTsetService")
public class UserTserServiceImpl implements UserTestService {@Resourceprivate UserTestDao userTestDao;@Overridepublic void addUser(UserDomain user) {userTestDao.addUser(user);}@Overridepublic UserDomain findUser(int id) {UserDomain user = userTestDao.findUser(id);return user;}@Overridepublic void updateUser(UserDomain user) {userTestDao.updateUser(user);}@Overridepublic void delUser(int id) {userTestDao.delUser(id);}@Overridepublic List<UserDomain> findAllUser() {List<UserDomain> allUser = userTestDao.findAllUser();return allUser;}
}

五.dao 层

UserTestDao

package com.example.demo.dao;import com.example.demo.model.UserDomain;import java.util.List;public interface UserTestDao {/*** 添加用户* @param user*/public void addUser(UserDomain user);/*** 根据id查询用户* @param id* @return UserDomain*/public UserDomain findUser(int id);/*** 修改用户* @param user*/public void updateUser(UserDomain user);/*** 删除用户* @param id*/public void delUser(int id);/*** 查询所有用户* @return List<UserDomain>*/public List<UserDomain> findAllUser();}

映射文件  UserTestMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis//DTD Mapper 3.0//EN" ".dtd" >
<mapper namespace="com.example.demo.dao.UserTestDao" ><sql id="BASE_TABLE">UserDomain</sql><sql id="BASE_COLUMN">userId,userName,password,phone</sql><insert id="addUser" parameterType="com.example.demo.model.UserDomain">INSERT INTO<include refid="BASE_TABLE"/><trim prefix="(" suffix=")" suffixOverrides=",">userName,password,<if test="phone != null">phone,</if></trim><trim prefix="VALUES(" suffix=")" suffixOverrides=",">#{userName, jdbcType=VARCHAR},#{password, jdbcType=VARCHAR},<if test="phone != null">#{phone, jdbcType=VARCHAR},</if></trim></insert><select id="findAllUser" resultType="com.example.demo.model.UserDomain">SELECT<include refid="BASE_COLUMN"/>FROM<include refid="BASE_TABLE"/></select><select id="findUser" resultType="com.example.demo.model.UserDomain" parameterType="int">SELECT<include refid="BASE_COLUMN"/>FROM<include refid="BASE_TABLE"/>WHEREuserId=#{id}</select><update id="updateUser" parameterType="com.example.demo.model.UserDomain">UPDATE<include refid="BASE_TABLE"/>SETuserName=#{userName},password=#{password},phone=#{phone}WHEREuserId=#{userId}</update><delete id="delUser" parameterType="int">DELETE FROM userdomain WHERE userId=#{id}</delete></mapper>

六.sql语句

CREATE DATABASE /*!32312 IF NOT EXISTS*/`test` /*!40100 DEFAULT CHARACTER SET utf8 */;USE `test`;/*Table structure for table `userdomain` */DROP TABLE IF EXISTS `userdomain`;CREATE TABLE `userdomain` (`userId` INT(4) NOT NULL AUTO_INCREMENT,`userName` VARCHAR(20) NOT NULL,`password` VARCHAR(20) NOT NULL,`phone` VARCHAR(11) NOT NULL,PRIMARY KEY (`userId`)
) ENGINE=INNODB AUTO_INCREMENT=13 DEFAULT CHARSET=utf8;/*Data for the table `userdomain` */INSERT  INTO `userdomain`(`userId`,`userName`,`password`,`phone`) VALUES (1,'杨灿','123456','18175979975'),(2,'小芳','123456','18175979976'),(3,'小杨','123456','18175979977'),(4,'小刚','123','18175979978'),(5,'灰太狼','123456','18175979979'),(6,'喜羊羊','123456','18175979974'),(7,'亚索','123456','15498799956');

发布项目后访问http://localhost:8080/test/findAllUser