<?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.zhangguo</groupId>
    <artifactId>springmvc08</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <spring.version>4.3.0.RELEASE</spring.version>
    </properties>

    <!--项目依赖 -->
    <dependencies>
        <!--单元测试-->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>

        <!--j2ee相关包 servlet、jsp、jstl-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </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>

        <!--mysql驱动包-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.35</version>
        </dependency>

        <!--spring相关包-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <!--其他需要的包-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.4</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
    </dependencies>

    <build>
        <finalName>maven-springmvc</finalName>
        <resources>
            <!--表示把java目录下的有关xml文件,properties文件编译/打包的时候放在resource目录下-->
            <resource>
                <directory>${basedir}/src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <resource>
                <directory>${basedir}/src/main/resources</directory>
            </resource>
        </resources>
        <plugins>
            <!--servlet容器 jetty插件-->
            <plugin>
                <groupId>org.eclipse.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>9.3.10.v20160621</version>
            </plugin>
        </plugins>
    </build>

</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">


    <!--welcome pages-->
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <!--配置springmvc DispatcherServlet-->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <!--Sources标注的文件夹下需要新建一个spring文件夹-->
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:spring/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <filter>
        <filter-name>encodingFilter</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>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</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:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.3.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">
    <!--启用spring的一些annotation -->
    <context:annotation-config/>

    <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
    <context:component-scan base-package="com.zhangguo.springmvc08.controller">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!--HandlerMapping 无需配置，springmvc可以默认启动-->

    <!--静态资源映射-->
    <mvc:default-servlet-handler/>
    <!--如果发现是静态资源的请求，就将该请求转由Web应用服务器默认的Servlet处理，如果不是静态资源的请求，才由DispatcherServlet继续处-->
    <!--本项目把静态资源放在了WEB-INF的statics目录下，资源映射如下-->
    <!--<mvc:resources mapping="/css/**" location="/WEB-INF/statics/css/"/>-->
    <!--<mvc:resources mapping="/js/**" location="/WEB-INF/statics/js/"/>-->
    <!--<mvc:resources mapping="/image/**" location="/WEB-INF/statics/image/"/>-->

    <!--但是项目部署到linux下发现WEB-INF的静态资源会出现无法解析的情况，但是本地tomcat访问正常，因此建议还是直接把静态资源放在webapp的statics下，映射配置如下-->
    <!--<mvc:resources mapping="/css/**" location="/statics/css/"/>-->
    <!--<mvc:resources mapping="/js/**" location="/statics/js/"/>-->
    <!--<mvc:resources mapping="/image/**" location="/statics/images/"/>-->

    <!-- 配置注解驱动 可以将request参数与绑定到controller参数上 -->
    <mvc:annotation-driven/>

    <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀(如果最后一个还是表示文件夹,则最后的斜杠不要漏了) 使用JSP-->
    <!-- 默认的视图解析器 在上边的解析错误时使用 (默认使用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/"/><!--设置JSP文件的目录位置-->
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- springmvc文件上传需要配置的节点-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="20971500"/>
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="resolveLazily" value="true"/>
    </bean>
</beans>

package com.zhangguo.springmvc08.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller  //声明为控制器
@RequestMapping(path = "/home")  //请求映射
public class HomeController {
    @RequestMapping(path = "/index")  //请求映射
    public String index(Model model){
        model.addAttribute("message","Hello Spring MVC!");
        return "home/index";
    }
}

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<h2>
    ${message}
</h2>
</body>
</html>

package com.zhangguo.springmvc08.entity;

/***
 * 用户
 */
public class User {
    public User(int id, String name, String address, String phone) {
        this.id = id;
        this.name = name;
        this.address = address;
        this.phone = phone;
    }

    public User() {
    }

    /**
     * 编号
     */
    private int id;
    /**
     * 姓名
     */
    private String name;
    /**
     * 地址
     */
    private String address;
    /**
     * 电话
     */
    private String phone;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    /**
     * 姓名
     */
    public String getName() {
        return name;
    }

    /**
     * 姓名
     */
    public void setName(String name) {
        this.name = name;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }
}

package com.zhangguo.springmvc08.dao;

import com.zhangguo.springmvc08.entity.User;

import java.util.List;

/**
 * 用户数据访问接口
 */
public interface IUserDAO {
    /**获得所有*/
    List<User> getAll();
    /**根据用户编号获得用户对象*/
    User getUserById(int id);
    /**新增*/
    boolean add(User user);
    /**删除*/
    boolean delete(int id);
    /**更新*/
    boolean update(User user);
}

package com.zhangguo.springmvc08.dao;

import com.zhangguo.springmvc08.entity.User;
import org.springframework.stereotype.Repository;

import java.util.ArrayList;
import java.util.List;

/**
 * 用户数据访问对象
 */
@Repository
public class UserDAO implements IUserDAO {
    private static List<User> users = new ArrayList<User>();

    static {
        users.add(new User(1, "刘德华", "中国香港", "13767890098"));
        users.add(new User(2, "张学友", "中国广东", "18989890767"));
        users.add(new User(3, "张国立", "中国北京", "13345672345"));
        users.add(new User(4, "张靓因", "中国上海", "15890908679"));
        users.add(new User(5, "齐萍萍", "中国珠海", "13246712235"));
    }

    /**
     * 获得所有
     */
    public List<User> getAll() {
        return users;
    }

    /**
     * 单个用户
     */
    public User getUserById(int id) {
        for (User user : users) {
            if (user.getId() == id) {
                return user;
            }
        }
        return null;
    }

    /**
     * 添加
     */
    public boolean add(User user) {
        if(user.getId()<=0)
        {
            user.setId(users.get(users.size()-1).getId()+1);
        }
        users.add(user);
        return true;
    }

    /**
     * 删除
     */
    public boolean delete(int id) {
        users.remove(getUserById(id));
        return true;
    }

    /**
     * 更新
     */
    public boolean update(User user) {
        User oldUser = getUserById(user.getId());
        oldUser.setName(user.getName());
        oldUser.setAddress(user.getAddress());
        oldUser.setPhone(user.getPhone());
        return true;
    }
}

package com.zhangguo.springmvc08.service;

import com.zhangguo.springmvc08.dao.IUserDAO;
import com.zhangguo.springmvc08.dao.UserDAO;
import com.zhangguo.springmvc08.entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**用户业务*/
@Service
public class UserService {

    @Autowired
    IUserDAO userdao;

    public List<User> queryAllUsers(){
        return userdao.getAll();
    }

    public User getUserById(int id){
        return userdao.getUserById(id);
    }

    public boolean deleteUser(int id){
        return userdao.delete(id);
    }

    public  boolean addUser(User user){
        return userdao.add(user);
    }

    public boolean editUser(User user){
        return userdao.update(user);
    }

}

package com.zhangguo.springmvc08.controller;

import com.zhangguo.springmvc08.entity.User;
import com.zhangguo.springmvc08.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller  //声明为控制器
@RequestMapping(path = "/user")  //请求映射
public class UserController {

    @Autowired
    UserService userService;

    @RequestMapping(path = "/index")  //请求映射
    public String index(Model model){
        model.addAttribute("list",userService.queryAllUsers());
        return "user/index";
    }

    @RequestMapping("/delete/{id}")
    public String delete(@PathVariable int id){
        userService.deleteUser(id);
        return "redirect:/user/index";
    }

    @RequestMapping("/add")
    public String add(){
        return "user/add";
    }

    @RequestMapping(value = "/add",method = RequestMethod.POST)
    public String add(User user){
        userService.addUser(user);
        return "redirect:/user/index";
    }

    @RequestMapping("/edit/{id}")
    public String edit(@PathVariable int id,Model model){
        model.addAttribute("user",userService.getUserById(id));
        return "user/edit";
    }

    @RequestMapping(value = "/edit",method = RequestMethod.POST)
    public String edit(User user){
        userService.editUser(user);
        return "redirect:/user/index";
    }

}

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>用户管理</title>
</head>
<body>
<h2>
    用户管理
</h2>
<table width="100%" border="1">
    <tr>
        <th>编号</th>
        <th>姓名</th>
        <th>地址</th>
        <th>电话</th>
        <th>操作</th>
    </tr>
    <c:forEach items="${list}" var="user">
        <tr>
            <td>${user.id}</td>
            <td>${user.name}</td>
            <td>${user.address}</td>
            <td>${user.phone}</td>
            <td>
                <a href="delete/${user.id}" class="del">删除</a> |
                <a href="edit/${user.id}">修改</a></td>
        </tr>
    </c:forEach>
</table>
<p>
    <a href="add">新增</a>
</p>
<script>
    var items = document.querySelectorAll(".del");
    for (var i = 0; i < items.length; i++) {
        items[i].onclick = function () {
            return confirm("您确认要删除吗？");
        }
    }
</script>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>用户管理</title>
</head>
<body>
<h2>
    添加用户
</h2>
<form method="post" action="add">
    <fieldset>
        <legend>用户信息</legend>
        <p>
            <label for="name">姓名：</label>
            <input name="name" id="name" type="text" required="required" maxlength="32"/>
        </p>
        <p>
            <label for="address">地址：</label>
            <input name="address" id="address" type="text" required="required" maxlength="128"/>
        </p>
        <p>
            <label for="phone">电话：</label>
            <input name="phone" id="phone" type="text" required="required" maxlength="11"/>
        </p>
        <p>
            <button>提交</button>
        </p>
    </fieldset>
</form>
<a href="index">列表</a>
</body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>用户管理</title>
</head>
<body>
<h2>
    修改用户
</h2>
<form method="post" action="../edit">
    <fieldset>
        <legend>用户信息</legend>
        <p>
            <label for="id">编号：</label>
            <input name="id" id="id" type="text" required="required" readonly="readonly" maxlength="32" value="${user.id}"/>
        </p>
        <p>
            <label for="name">姓名：</label>
            <input name="name" id="name" type="text" required="required" maxlength="32" value="${user.name}"/>
        </p>
        <p>
            <label for="address">地址：</label>
            <input name="address" id="address" type="text" required="required" maxlength="128" value="${user.address}"/>
        </p>
        <p>
            <label for="phone">电话：</label>
            <input name="phone" id="phone" type="text" required="required" maxlength="11" value="${user.phone}"/>
        </p>
        <p>
            <button>提交</button>
        </p>
    </fieldset>
</form>
<a href="index">列表</a>
</body>
</html>

<?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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       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-4.3.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">

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

    <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->
    <context:component-scan base-package="com.zhangguo.springmvc08">
    </context:component-scan>

    <!--HandlerMapping 无需配置，springmvc可以默认启动-->

    <!--静态资源映射-->
    <mvc:default-servlet-handler/>
    <!--如果发现是静态资源的请求，就将该请求转由Web应用服务器默认的Servlet处理，如果不是静态资源的请求，才由DispatcherServlet继续处-->
    <!--本项目把静态资源放在了WEB-INF的statics目录下，资源映射如下-->
    <!--<mvc:resources mapping="/css/**" location="/WEB-INF/statics/css/"/>-->
    <!--<mvc:resources mapping="/js/**" location="/WEB-INF/statics/js/"/>-->
    <!--<mvc:resources mapping="/image/**" location="/WEB-INF/statics/image/"/>-->

    <!--但是项目部署到linux下发现WEB-INF的静态资源会出现无法解析的情况，但是本地tomcat访问正常，因此建议还是直接把静态资源放在webapp的statics下，映射配置如下-->
    <!--<mvc:resources mapping="/css/**" location="/statics/css/"/>-->
    <!--<mvc:resources mapping="/js/**" location="/statics/js/"/>-->
    <!--<mvc:resources mapping="/image/**" location="/statics/images/"/>-->

    <!-- 配置注解驱动 可以将request参数与绑定到controller参数上 -->
    <mvc:annotation-driven/>

    <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀(如果最后一个还是表示文件夹,则最后的斜杠不要漏了) 使用JSP-->
    <!-- 默认的视图解析器 在上边的解析错误时使用 (默认使用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/"/><!--设置JSP文件的目录位置-->
        <property name="suffix" value=".jsp"/>
    </bean>

    <!-- springmvc文件上传需要配置的节点-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="20971500"/>
        <property name="defaultEncoding" value="UTF-8"/>
        <property name="resolveLazily" value="true"/>
    </bean>
</beans>