<?xml versinotallow="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>spring-vip-jt-demo</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>spring-vip-jt-demo Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!--spring 版本號(hào)-->
    <spring.version>5.2.8.RELEASE</spring.version>
    <!--mybatis 版本號(hào)-->
    <mybatis.version>3.5.6</mybatis.version>
  </properties>

  <dependencies>
    <!--spring 核心包-->
    <!-- spring start -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-oxm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- spring end -->

    <!--mybatis核心包-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <!--日志-->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.8.0-alpha0</version>
      <scope>test</scope>
    </dependency>

    <!--j2ee相關(guān)包 servlet、jsp、jstl-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>4.0.0</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>jsp-api</artifactId>
      <version>2.2</version>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!--mybatis/spring 包-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>2.0.6</version>
    </dependency>

    <!--MySQL 驅(qū)動(dòng)包-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.39</version>
    </dependency>

    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-model</artifactId>
      <version>3.0</version>
    </dependency>
  </dependencies>
</project>

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

    <display-name>Archetype Created Web Application</display-name>
    <!--welcome pages-->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!-- 解決post亂碼解決在url中傳遞中文參數(shù)時(shí)的亂碼 -->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <!-- 配置所有請(qǐng)求都經(jīng)過(guò)該攔截器，即所有資源都統(tǒng)一使用 utf-8 防止亂碼 -->
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--配置springmvc DispatcherServlet-->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <!--配置dispatcher.xml作為mvc的配置文件-->
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springMVC.xml</param-value>
        </init-param>
        <!--
 1、load-on-startup元素標(biāo)記容器是否在啟動(dòng)的時(shí)候就加載這個(gè)servlet(實(shí)例化并調(diào)用其init()方法)；
 2、當(dāng)值為0或者大于0時(shí)，表示容器在應(yīng)用啟動(dòng)時(shí)就加載并初始化這個(gè)servlet；
 3、當(dāng)值小于0或者沒(méi)有指定時(shí)，則表示容器在該servlet被選擇時(shí)才會(huì)去加載；
 4、正數(shù)的值越小，該servlet的優(yōu)先級(jí)越高，應(yīng)用啟動(dòng)時(shí)就越先加載；
 5、當(dāng)值相同時(shí)，容器就會(huì)自己選擇順序來(lái)加載。
 -->
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>

    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <!--  /* 可以匹配所有的請(qǐng)求-->
        <!-- 會(huì)匹配到所有像 /login 這樣的路徑型url，但不會(huì)匹配到 后綴型的url（即 *.html等） -->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--把a(bǔ)pplicationContext.xml加入到配置文件中-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                            http://www.springframework.org/schema/beans/spring-beans.xsd
                            http://www.springframework.org/schema/mvc
                            http://www.springframework.org/schema/mvc/spring-mvc.xsd
                            http://www.springframework.org/schema/context
                            http://www.springframework.org/schema/context/spring-context.xsd">

    <!--此文件負(fù)責(zé)整個(gè)mvc中的配置-->
    <!-- 自動(dòng)掃描裝配 -->
    <context:component-scan base-package="com.example"/>

    <!--啟用spring的一些annotation -->
    <context:annotation-config/>

    <!-- 配置注解驅(qū)動(dòng) 可以將request參數(shù)與綁定到controller參數(shù)上 -->
    <mvc:annotation-driven/>

    <!--靜態(tài)資源映射-->
    <!--本項(xiàng)目把靜態(tài)資源放在了webapp的statics目錄下，資源映射如下-->
    <mvc:resources mapping="/css/**" location="/css/"/>
    <mvc:resources mapping="/js/**" location="/js/"/>
    <mvc:resources mapping="/image/**" location="/images/"/>
    <mvc:default-servlet-handler />  <!--這句要加上，要不然可能會(huì)訪問(wèn)不到靜態(tài)資源，具體作用自行百度-->

    <!-- 對(duì)模型視圖名稱(chēng)的解析，即在模型視圖名稱(chēng)添加前后綴(如果最后一個(gè)還是表示文件夾,則最后的斜杠不要漏了) 使用JSP-->
    <!-- 默認(rèn)的視圖解析器 在上邊的解析錯(cuò)誤時(shí)使用 (默認(rèn)使用html)- -->
    <bean id="defaultViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
        <property name="prefix" value="/WEB-INF/views/"/><!--設(shè)置JSP文件的目錄位置-->
        <property name="suffix" value=".jsp"/>
        <property name="exposeContextBeansAsAttributes" value="true"/>
    </bean>
</beans>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- demo02包通過(guò)注解自動(dòng)掃描 -->
    <context:component-scan base-package="com.example.demo02"/>
</beans>

<html>
    <body>
        <h2>${version}</h2> 
        <h2>${name}:${msg}</h2>
    </body>
</html>

<!-- demo01包通過(guò)xml配置 -->
<bean id="helloService01" class="com.example.demo01.HelloService01"/>

package com.example.demo01;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Eclipse_2019
 * @create 2021/7/31 17:52
 */
@Controller
public class HelloController01 {

    @Autowired
    private HelloService01 helloService01;

    @RequestMapping("/hello01")
    public ModelAndView hello01(@RequestParam String name){
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("version","1.X版本");
        modelAndView.addObject("name",name);
        modelAndView.addObject("msg",helloService01.sayHello(name));
        modelAndView.setViewName("a");
        return modelAndView;
    }

}

public class HelloService01 {
    public String sayHello(String name){
        return "你真棒！"+name;
    }
}

public class DemoMain {
    public static void main(String[] args) {
//        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:applicationContext.xml");
        System.out.println(context.getBean(HelloService01.class));
    }
}

<context:component-scan base-package="com.example.demo02"/>

@Controller
public class HelloController02 {

    @Autowired
    private HelloService02 helloService02;

    @RequestMapping("/hello02")
    public ModelAndView hello(@RequestParam String name){
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("version","2.X版本");
        modelAndView.addObject("name",name);
        modelAndView.addObject("msg",helloService02.sayHello(name));
        modelAndView.setViewName("a");
        return modelAndView;
    }
}

@Service
public class HelloService02 {
    public String sayHello(String name){
        return "你好帥啊！";
    }
}

public class Demo02Main {
    public static void main(String[] args) {
        ApplicationContext context = new FileSystemXmlApplicationContext("classpath:applicationContext.xml");
        System.out.println(context.getBean(HelloController02.class));
    }
}

package com.example.demo03;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author Eclipse_2019
 * @create 2021/8/3 17:16
 */
@Configuration
public class SpringConfiguration {

    @Bean
    public HelloService03 helloService03(){
        return new HelloService03();
    }

    @Bean
    public HelloController03 helloController03(){
        return new HelloController03();
    }
}

public class HelloService03 {
    public String sayHello(String name){
        return "你好帥啊！";
    }
}

<?xml versinotallow="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

    <!--1 引入屬性文件，在配置中占位使用 -->
    <context:property-placeholder location="classpath*:db.properties" />

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <!--配置數(shù)據(jù)庫(kù)信息-->
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>

    <!--聲明MyBatis中提供的SqlSessionFactoryBean，用于創(chuàng)建SqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--引用注入，將數(shù)據(jù)庫(kù)連接池賦值給dataSource-->
        <property name="dataSource" ref="dataSource"/>
        <!--MyBatis主配置文件位置,configLocation為Resource類(lèi)型，讀取配置文件-->
        <property name="configLocation" value="classpath:mybatis.xml"></property>
        <!--用于指定mapper.xml文件的位置
            如果Mapper.xml與Dao接口文件在同一個(gè)包下且同名，spring中MapperScannerConfigurer掃描Dao接口文件的同時(shí)會(huì)自動(dòng)掃描同名的Mapper.xml并裝配到Dao接口文件
            如果Mapper.xml與Dao接口文件不在同一個(gè)包下或者不同名，就必須使用配置mapperLocations指定mapper.xml的位置
            此時(shí)spring是通過(guò)識(shí)別mapper.xml中的<mapper namespace=""> namespace的值來(lái)確定對(duì)應(yīng)的Mapper.class-->
        <property name="mapperLocations" value="classpath:mapper/*Mapper.xml"/>
    </bean>

    <!--創(chuàng)建Dao對(duì)象，使用SqlSession的getMapper(dao.class)
        MapperScannerConfigurer:在內(nèi)部調(diào)用getMapper()生成每個(gè)Dao接口的代理對(duì)象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--指定sqlSessionFactory的ID-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!--指定包名，包名為Dao接口所在包名，MapperScannerConfigurer掃描該包，為每個(gè)接口執(zhí)行g(shù)etMapper()方法，
            得到每個(gè)接口的Dao對(duì)象，創(chuàng)建好的Dao對(duì)象放入Spring容器-->
        <property name="basePackage" value="com.example.demo07"/>
    </bean>
</beans>

<?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 -->
    <settings>
        <!-- 打開(kāi)延遲加載的開(kāi)關(guān) -->
        <setting name="lazyLoadingEnabled" value="true"/>
        <!-- 將積極加載改為消極加載（即按需加載） -->
        <setting name="aggressiveLazyLoading" value="false"/>
        <!-- 打開(kāi)全局緩存開(kāi)關(guān)（二級(jí)緩存）默認(rèn)值就是 true -->
        <setting name="cacheEnabled" value="true"/>
    </settings>

    <!-- 別名定義 -->
    <typeAliases>
        <package name="com.example.demo07"/>
    </typeAliases>

    <!-- 加載映射文件 -->
    <mappers>
        <mapper class="com.example.demo07.UserDao"/>
    </mappers>
</configuration>

@RestController
public class HelloController {
    @GetMapping("hello")
    public String hello(){
        return "hello, spring boot!";
    }
}

<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.3</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>

spring.datasource.username=root
spring.datasource.password=jingtian
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://192.168.8.74:3306/test
server.port=8080

mybatis.mapper-locations=classpath:*Mapper.xml

package com.example.springbootvipjtdemo.demo01.controller;

import com.example.springbootvipjtdemo.demo01.dao.entity.User;
import com.example.springbootvipjtdemo.demo01.services.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Eclipse_2019
 * @create 2021/8/2 16:33
 */
@RestController
public class HelloController {

    @Autowired
    IUserService userService;

    @PostMapping("addUser")
    public String addUser(@RequestBody User user){
        int a = userService.insert(user);
        if(a!=0){
            return "插入成功";
        }else{
            return "失敗";
        }
    }
}

package com.example.springbootvipjtdemo.demo01.services;
import com.example.springbootvipjtdemo.demo01.dao.entity.User;
public interface IUserService {
    int insert(User user);
}
package com.example.springbootvipjtdemo.demo01.services.impl;

import com.example.springbootvipjtdemo.demo01.dao.entity.User;
import com.example.springbootvipjtdemo.demo01.dao.mappers.UserMapper;
import com.example.springbootvipjtdemo.demo01.services.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
/**
 * @author Eclipse_2019
 * @create 2021/8/2 16:47
 */
@Service
public class UserServiceImpl implements IUserService {
    @Autowired
    UserMapper userMapper;

    @Override
    public int insert(User user) {
        return userMapper.insert(user);
    }
}

package com.example.springbootvipjtdemo.demo01.dao.mappers;
import com.example.springbootvipjtdemo.demo01.dao.entity.User;
import org.apache.ibatis.annotations.Mapper;

@Mapper
public interface UserMapper {

    int insert(User user);
}

<?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.example.springbootvipjtdemo.demo01.dao.mappers.UserMapper">

    <resultMap id="BaseResultMap" type="com.example.springbootvipjtdemo.demo01.dao.entity.User">
        <id column="userid" property="userID"/>
        <result column="username" property="userName"/>
    </resultMap>

    <insert id="insert" parameterType="com.example.springbootvipjtdemo.demo01.dao.entity.User" keyProperty="userId" useGeneratedKeys="true">
        insert into user(username,age) values(#{userName,jdbcType=VARCHAR},#{age,jdbcType=BIGINT})
    </insert>
</mapper>

package com.example.springbootvipjtdemo.demo01;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@MapperScan("com.example.springbootvipjtdemo.demo01.dao.mappers")
@SpringBootApplication(scanBasePackages = {"com.example.springbootvipjtdemo.demo01"})
public class SpringBootDemoApplication {

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

}