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Guangshan
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‎pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.mxixm.spring</groupId>
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<artifactId>mvc</artifactId>
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<version>1.0-SNAPSHOT</version>
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<packaging>war</packaging>
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<name>mvc Maven Webapp</name>
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<url>http://www.mxixm.com</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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<version>5.0.6.RELEASE</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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<version>5.0.6.RELEASE</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-jdbc</artifactId>
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<version>5.0.6.RELEASE</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.apache.tomcat</groupId>
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<artifactId>tomcat-jdbc</artifactId>
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<version>8.5.20</version>
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</dependency>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>5.1.44</version>
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</dependency>
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</dependencies>
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</project>

‎sql/init.sql

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CREATE DATABASE test;
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CREATE TABLE user (
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id int NOT NULL AUTO_INCREMENT ,
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name varchar(255) NULL ,
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PRIMARY KEY (`id`)
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);

‎src/main/java/com/mxixm/spring/mvc/controller/DemoController.java

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package com.mxixm.spring.mvc.controller;
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import com.mxixm.spring.mvc.service.DemoService;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.Model;
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import org.springframework.web.bind.annotation.RequestMapping;
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@Controller
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public class DemoController {
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@Autowired
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private DemoService demoService;
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@RequestMapping("/")
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public String index(Model model) {
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String name = demoService.getName(1);
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model.addAttribute("name", name);
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return "index";
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}
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}

‎src/main/java/com/mxixm/spring/mvc/service/DemoService.java

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package com.mxixm.spring.mvc.service;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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@Service
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public class DemoService {
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@Autowired
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private JdbcTemplate jdbcTemplate;
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@Transactional
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public String getName(int id) {
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return jdbcTemplate.queryForObject("select name from user where id = ?", String.class, id);
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}
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}

‎src/main/resource/spring-servlet.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns:context="http://www.springframework.org/schema/context"
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xmlns:tx="http://www.springframework.org/schema/tx"
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xmlns:mvc="http://www.springframework.org/schema/mvc"
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xsi:schemaLocation="http://www.springframework.org/schema/beans
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http://www.springframework.org/schema/beans/spring-beans.xsd
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http://www.springframework.org/schema/context
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http://www.springframework.org/schema/context/spring-context.xsd
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http://www.springframework.org/schema/tx
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http://www.springframework.org/schema/tx/spring-tx.xsd
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http://www.springframework.org/schema/mvc
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http://www.springframework.org/schema/mvc/spring-mvc.xsd">
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<!-- 配置扫描的包 -->
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<context:component-scan base-package="com.mxixm.spring.mvc.*"/>
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<!-- 注册MVC的注解驱动 -->
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<mvc:annotation-driven/>
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<!--注册事务的注解驱动-->
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<tx:annotation-driven/>
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<!-- 访问静态资源 -->
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<mvc:default-servlet-handler/>
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<!-- 视图解析器 -->
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<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
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<property name="prefix" value="/WEB-INF/view/"></property>
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<property name="suffix" value=".jsp"></property>
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</bean>
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<!-- 数据源 -->
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<bean id="dataSource" class="org.apache.tomcat.jdbc.pool.DataSource">
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<property name="url" value="jdbc:mysql://localhost:3306/test"></property>
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<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
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<property name="username" value="root"></property>
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<property name="password" value="123456"></property>
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</bean>
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<!-- 数据库操作模板 -->
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<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
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<property name="dataSource" ref="dataSource"></property>
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</bean>
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<!-- 配置事务管理器 -->
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<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
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<property name="dataSource" ref="dataSource"></property>
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</bean>
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</beans>

‎src/main/webapp/WEB-INF/view/index.jsp

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<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
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<html>
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<body>
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<h2>Hello ${name}!</h2>
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</body>
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</html>

‎src/main/webapp/WEB-INF/web.xml

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<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
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version="3.1">
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<display-name>Demo MVC Application</display-name>
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<servlet>
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<servlet-name>spring</servlet-name>
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<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
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<init-param>
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<param-name>contextConfigLocation</param-name>
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<param-value>classpath:spring-servlet.xml</param-value>
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</init-param>
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<load-on-startup>1</load-on-startup>
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</servlet>
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<servlet-mapping>
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<servlet-name>spring</servlet-name>
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<url-pattern>/</url-pattern>
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</servlet-mapping>
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</web-app>

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