上图·是目录结构，本节是有问同学的，当好好总结
pom.xml <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.geyao</groupId> <artifactId>springmaven</artifactId> <version>0.0.1-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>4.2.8.RELEASE</version> </dependency> <dependency> <groupId>org.apache.taglibs</groupId> <artifactId>taglibs-standard-spec</artifactId> <version>1.2.5</version> </dependency> <dependency> <groupId>org.apache.taglibs</groupId> <artifactId>taglibs-standard-impl</artifactId> <version>1.2.5</version> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.1.2</version> </dependency> </dependencies> </project>web.xml <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>Springmaven01</display-name> <welcome-file-list> <welcome-file>/WEB-INF/jsp/home.jsp</welcome-file> </welcome-file-list> <!-- 处理中文乱码 --> <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> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- SpringMVC控制器 --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <!-- 主要就是DispatcherServlet这个servlet起到分发的作用，对请求进行控制分发 --> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <!-- 每个springmvc项目都要一个springmvc项目配置位置，下面配置springmvc配置文件的路径 --> <param-name>contextConfigLocation</param-name> <param-value>classpath*:springMVC-servlet.xml</param-value> </init-param> <!-- 当容器启动时立即启动 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <!-- 下面配置springmvc的过滤分发请求类型，可以是/ 或者*.action等 --> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>springMVC-servlet <?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-4.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> <!-- 定义要扫描 controller的包--> <context:component-scan base-package="wormday.springmvc.helloworld" /> <!-- 定义要扫描 controller的包--> <context:component-scan base-package="wormday.springmvc.dao" /> <!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 --> <!--指定视图解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 视图的路径 --> <property name="prefix" value="/WEB-INF/jsp/"/> <!-- 视图名称后缀 --> <property name="suffix" value=".jsp"/> </bean> </beans>userDao类 package wormday.springmvc.dao; import java.util.Collection; import java.util.HashMap; import java.util.Map; import org.springframework.stereotype.Repository; import wormday.springmvc.pojo.Address; import wormday.springmvc.pojo.User; @Repository public class UserDao { private static Map<Integer, User> users =null; //@Autowired static{ users = new HashMap<Integer, User>(); users.put(1001, new User(1001,"helen","123","123@qq.com",12,new Address(1,"黑龙江","哈尔冰" ))); users.put(1002, new User(1002,"helen","123","123@qq.com",12,new Address(1,"黑龙江","哈尔冰" ))); users.put(1003, new User(1003,"helen","123","123@qq.com",12,new Address(1,"黑龙江","哈尔冰" ))); } private static Integer initId =1004; public void save(User user) { if(user.getId()==null) { user.setId(initId++); } users.put(user.getId(),user); } public Collection<User> getAll(){ return users.values(); } public User get(Integer id) { return users.get(id); } public void delete(Integer id) { users.remove(id); } }indexController类 package wormday.springmvc.helloworld; import javax.servlet.http.HttpSession; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/test") public class IndexController { @RequestMapping("/index") public String say(HttpSession session) { System.out.print(session.getId()); return "home"; } }UserController类 package wormday.springmvc.helloworld; import java.util.Collection; 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; import org.springframework.web.bind.annotation.SessionAttributes; import com.sun.javafx.sg.prism.NGShape.Mode; import wormday.springmvc.dao.UserDao; import wormday.springmvc.pojo.User; @Controller ///@RequestMapping("/user") //@SessionAttributes(value= {"user"},types= {String.class}) public class UserController { @Autowired private UserDao userDao; @RequestMapping(value="/users",method=RequestMethod.GET) public String list(Model model) { Collection<User> userList=userDao.getAll(); model.addAttribute("userList",userList); return "user/list"; } @RequestMapping(value="/user/{id}",method=RequestMethod.DELETE) public String delete(@PathVariable(value="id")Integer id) { //执行删除 System.out.println("delete"+id); userDao.delete(id); return "redirect:/users"; } @RequestMapping(value="/user",method=RequestMethod.GET) public String add() { //执行删除 System.out.println("add"); return "user/add"; } @RequestMapping(value="/user",method=RequestMethod.POST) public String save(User user) { //执行保存 System.out.println("save"); System.out.print(user); return "redirect:/users"; } //编辑 @RequestMapping(value="/user/{id}",method=RequestMethod.GET) public String edit(@PathVariable(value="id")Integer id,Model model) { //执行更新 System.out.println("edit"); User user=userDao.get(id); model.addAttribute("user", user); return "user/edit"; } @RequestMapping(value="/user/{id}",method=RequestMethod.PUT) public String update(@PathVariable(value="id")Integer id,User user) { System.out.println("update"); user.setId(id); userDao.save(user); return "redirect:/users"; } }Address类 package wormday.springmvc.pojo; public class Address { private Integer id; private String province; public String getProvince() { return province; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public void setProvince(String province) { this.province = province; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } private String city; public Address() { super(); } @Override public String toString() { return "Address [id=" + id + ", province=" + province + ", city=" + city + "]"; } public Address(Integer id, String province, String city) { super(); this.id = id; this.province = province; this.city = city; } }user类 package wormday.springmvc.pojo; public class User { public User() { super(); // TODO Auto-generated constructor stub } private Integer id; private String username; private String password; private String email; private Integer age; private Address address; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } public Address getAddress() { return address; } public void setAddress(Address address) { this.address = address; } @Override public String toString() { return "User [id=" + id + ", username=" + username + ", password=" + password + ", email=" + email + ", age=" + age + ", address=" + address + "]"; } public User(Integer id, String username, String password, String email, Integer age, Address address) { super(); this.id = id; this.username = username; this.password = password; this.email = email; this.age = age; this.address = address; } }form.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> ${sessionScope.strvalue} ${sessionScope.intvalue} <form action="save" method="post"> <label for="">用户名:<input type="text" name="username" value="${RequestScope.user.username}"/></label> <label for="">密码:<input type="text" name="password" value="${user.password}"/></label> <label for="">年龄:<input type="text" name="age" value="${sessionScope.user.age}"/></label> <label for="">邮箱:<input type="text" name="email" value="${user.email}"/></label> <label for="">省份:<input type="text" name="address.province" value="${user.address.province}"/></label> <label for="">城市:<input type="text" name="address.city" value="${user.address.city}"/></label> <button>登录</button> </form> </body> </html>home.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h1>nihaohao</h1> </body> </html>success.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h1>成功</h1> </body> </html>list.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <h1>用户列表</h1> <a href="user">增加</a> <table border="1"> <tr> <td>id</td> <td>姓名</td> <td>年龄</td> <td>操作</td> </tr> <c:forEach items="${userList}" var="user"> <tr> <td>${user.id}</td> <td>${user.username}</td> <td>${user.age}</td> <td> <a href="javascript:void(0)" οnclick="deleteById(${user.id})">删除</a> <a href="javascript:void(0)" οnclick="updateById(${user.id})">修改</a> </td> </tr> </c:forEach> </table> <%-- <a href="javascript:void(0)" οnclick="deleteById(${user.id})">删除</a> <a href="javascript:void(0)" οnclick="updateById(${user.id})">修改</a> --%> <form action="" method="post" id="deleteForm"> <input type="" name="_method" value="DELETE"/> <button>delete提交</button> </form> <form action="" method="post" id="updateForm"> <input type="text" name="_method" value="PUT"/> <button>update提交</button> </form> <script> function deleteById(id){ var form= document.getElementById('deleteForm'); form.action = "user/"+id; document.getElementById('deleteForm').submit(); } function updateById(id){ var form= document.getElementById('updateForm'); form.action = "user/"+id; document.getElementById('updateForm').submit(); } </script> </body> </html>add.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="${pageContext.request.contextPath}/user/" method="post"> <label for="">用户名:<input type="text" name="username" value="${user.username}"/></label><br> <label for="">密码:<input type="text" name="password" value="${user.password}"/></label><br> <label for="">年龄:<input type="text" name="age" value="${user.age}"/></label><br> <label for="">邮箱:<input type="text" name="email" value="${user.email}"/></label><br> <label for="">省份:<input type="text" name="address.province" value="${user.address.province}"/></label><br> <label for="">城市:<input type="text" name="address.city" value="${user.address.city}"/></label><br> <button>保存</button> </form> </body> </html>edit.jsp <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <form action="${pageContext.request.contextPath}/user/${user.id}" method="post"> <input type="hidden" name="_method" value="PUT"> <input type="hidden" name="id" value="${user.id}"> <label for="">用户名:<input type="text" name="username" value="${user.username}"/></label><br> <label for="">密码:<input type="text" name="password" value="${user.password}"/></label><br> <label for="">年龄:<input type="text" name="age" value="${user.age}"/></label><br> <label for="">邮箱:<input type="text" name="email" value="${user.email}"/></label><br> <label for="">省份:<input type="text" name="address.province" value="${user.address.province}"/></label><br> <label for="">城市:<input type="text" name="address.city" value="${user.address.city}"/></label><br> <button>保存</button> </form> </body> </html>
