标签：
目标：制作一个人员列表，可通过人员的id进行修改。
界面1：
界面2：
界面3：
一.利用myEclipse导入spring的特性后，让applicationContext.xml在WebRoot下。
二.过程：
1.建立index.jsp界面，使用jstl注解。（知识点C标签）
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 5 %> 6 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 8 <html> 9 <head> 10 <base href="<%=basePath%>"> 11 12 <title>My JSP ‘index.jsp‘ starting page</title> 13 <meta http-equiv="pragma" content="no-cache"> 14 <meta http-equiv="cache-control" content="no-cache"> 15 <meta http-equiv="expires" content="0"> 16 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 17 <meta http-equiv="description" content="This is my page"> 18 </head> 19 20 <body> 21 <h2>Adobocode : 世界你好</h2> 22 <br/> 23 <a href="<c:url value="personDisplay.htm"/>">人员列表</a> 24 </body> 25 </html>
2.在web.xml配置分发器，走htm后缀的方法
1 <?xml version="1.0" encoding="UTF-8"?> 2 <web-app version="2.5" 3 xmlns="http://java.sun.com/xml/ns/javaee" 4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 5 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 6 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 7 8 <servlet> 9 <servlet-name>springMVC</servlet-name> 10 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 11 <load-on-startup>1</load-on-startup> 12 </servlet> 13 14 <servlet-mapping> 15 <servlet-name>springMVC</servlet-name> 16 <url-pattern>*.htm</url-pattern> 17 </servlet-mapping> 18 19 <welcome-file-list> 20 <welcome-file>index.jsp</welcome-file> 21 </welcome-file-list> 22 </web-app>
3.配置springMVC-servlet.xml：第一次搭建时，报404错误，原来是下面这一行配置有误，prefix为路径的前缀，要扫描的view层是放在jsp文件下的，所以是value为/jsp/，只要路径弄错了就会报404.
<property name="prefix"><value>/jsp/</value></property>
1 <?xml version="1.0" encoding="UTF-8"?> 2 3 <beans xmlns="http://www.springframework.org/schema/beans" 4 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:context="http://www.springframework.org/schema/context" 6 xsi:schemaLocation=" 7 http://www.springframework.org/schema/beans 8 http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 9 http://www.springframework.org/schema/context 10 http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 11 <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/> 12 <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/> 13 <context:component-scan base-package="paul.sydney.controller"/> 14 <context:component-scan base-package="paul.sydney.service"/> 15 <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 视图解释类:将在Controller返回的ModelAndView的基础上,加上目录前缀/WEB-INF/jsp/, 加后文件名称后缀.jsp,由此等待下个页面 -->
16 <property name="viewClass"><value>org.springframework.web.servlet.view.JstlView</value></property> 17 <property name="prefix"><value>/jsp/</value></property> 18 <property name="suffix"><value>.jsp</value></property> 19 </bean> 20 </beans>
DispatcherServlet默认在/WEB-INF/中查找<servlet-name>-servlet.xml,使用该配置文件初始化DispatcherServlet上下文对应的子spring容器，spring mvc3可以在-servlet.xml，自动扫描各个包，在此扫描controller/service两个包，返回视图层：jsp文件夹下面的.jsp后缀文件。有篇很好的介绍：http://www.open-open.com/lib/view/open1402751642806.html
4.model层，bean
1 package paul.sydney.model; 2 3 public class Person { 4 private int id; 5 private String name; 6 private int age; 7 private String address; 8 9 public int getId() { 10 return id; 11 } 12 13 public void setId(int id) { 14 this.id = id; 15 } 16 17 public String getName() { 18 return name; 19 } 20 21 public void setName(String name) { 22 this.name = name; 23 } 24 25 public int getAge() { 26 return age; 27 } 28 29 public void setAge(int age) { 30 this.age = age; 31 } 32 33 public String getAddress() { 34 return address; 35 } 36 37 public void setAddress(String address) { 38 this.address = address; 39 } 40 41 @Override 42 public String toString() { 43 StringBuilder sb = new StringBuilder(); 44 sb.append("\nname:" + this.name); 45 sb.append("\nage:" + this.age); 46 sb.append("\naddress:" + this.address); 47 48 return sb.toString(); 49 50 } 51 }
5.servlet层，这里使用一些伪造的数据
1 package paul.sydney.service; 2 3 import java.util.ArrayList; 4 import java.util.List; 5 6 import org.springframework.stereotype.Service; 7 8 import paul.sydney.model.Person; 9 10 @Service 11 public class DummyService { 12 public List<Person> getDummyList() { 13 System.err.println("111111"); 14 List<Person> list = new ArrayList<Person>(); 15 Person p1 = new Person(); 16 p1.setId(123); 17 p1.setName("ami"); 18 p1.setAge(23); 19 p1.setAddress("Nzland"); 20 Person p2 = new Person(); 21 p2.setId(321); 22 p2.setName("heha"); 23 p2.setAge(21); 24 p2.setAddress("England"); 25 list.add(p1); 26 list.add(p2); 27 28 return list; 29 } 30 public Person retrievePerson(int id) { 31 System.err.println("123456"); 32 Person person = new Person(); 33 person.setId(56789); 34 person.setName("Nikki"); 35 person.setAge(63); 36 person.setAddress("Dalaguete, Cebu"); 37 return person; 38 } 39 40 public void savePerson(Person person) { 41 System.out.println("\n\nSaving" + person); 42 } 43 }
6.controller层，有两个控制器：
数据的获取：
1 package paul.sydney.controller; 2 3 import org.springframework.beans.factory.annotation.Autowired; 4 import org.springframework.stereotype.Controller; 5 import org.springframework.ui.ModelMap; 6 import org.springframework.web.bind.annotation.RequestMapping; 7 8 import paul.sydney.service.DummyService; 9 10 @Controller 11 public class PersonDisplay { 12 13 private final DummyService dummyService; 14 15 @Autowired 16 public PersonDisplay(DummyService dummyService) { 17 18 this.dummyService = dummyService; 19 } 20 21 @RequestMapping("/personDisplay.htm") 22 public ModelMap defaultHandler() { 23 return new ModelMap("personList", this.dummyService.getDummyList()); 24 } 25 }
index.jsp的地址映射/personDisplay.htm，将从数据层找到的数据存储在ModelMap内，类似kv的数据结构。
点击id，进入数据的form：
1 package paul.sydney.controller; 2 3 import javax.net.ssl.SSLEngineResult.Status; 4 5 import org.springframework.beans.factory.annotation.Autowired; 6 import org.springframework.stereotype.Controller; 7 import org.springframework.ui.ModelMap; 8 import org.springframework.validation.BindingResult; 9 import org.springframework.web.bind.annotation.ModelAttribute; 10 import org.springframework.web.bind.annotation.RequestMapping; 11 import org.springframework.web.bind.annotation.RequestMethod; 12 import org.springframework.web.bind.annotation.RequestParam; 13 import org.springframework.web.bind.annotation.SessionAttributes; 14 import org.springframework.web.bind.support.SessionStatus; 15 16 import paul.sydney.model.Person; 17 import paul.sydney.service.DummyService; 18 19 20 @Controller 21 @RequestMapping("/personForm.htm") 22 @SessionAttributes("person") 23 public class PersonForm { 24 25 private final DummyService dummyService; 26 27 @Autowired 28 public PersonForm(DummyService dummyService) { 29 this.dummyService = dummyService; 30 } 31 32 @RequestMapping(method = RequestMethod.GET) 33 public String setupForm(@RequestParam("personId") int id, ModelMap model) { //用requestparam绑定personId这个url值，赋给id 34 Person person = this.dummyService.retrievePerson(id); 35 model.addAttribute("person", person); 36 return "personForm"; 37 } 38 39 @RequestMapping(method = RequestMethod.POST) 40 public String processSubmit(@ModelAttribute("person") Person person, 41 BindingResult result, SessionStatus status) { 42 System.err.println("redirect"); 43 this.dummyService.savePerson(person); 44 status.setComplete(); 45 return "redirect:personDisplay.htm"; 46 } 47 }
7.在WebRoot下建jsp文件夹：建两个jsp文件：personDisplay.jsp personForm.jsp
personDisplay.jsp
1 <%@ page language="java" session="false" 2 contentType="text/html; charset=UTF-8"%> 3 4 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> 5 6 <jsp:useBean id="personList" scope="request" 7 type="java.util.List<paul.sydney.model.Person>" /> 8 <html> 9 <head> 10 <title>Adobocode : Sample Spring MVC using JSTL iteration</title> 11 </head> 12 <body> 13 <h2> 14 Adobocode : Person List 明明用了JSTL啊！ 15 </h2> 16 <table border="1"> 17 <tr> 18 <th> 19 Id 20 </th> 21 <th> 22 Name 23 </th> 24 <th> 25 Age 26 </th> 27 <th> 28 Address 29 </th> 30 </tr> 31 <c:forEach var="p" items="${personList}"> 32 <tr> 33 <td> 34 <c:url var="editUrl" value="personForm.htm"> 35 <c:param name="personId" value="${p.id}" /> 36 </c:url> 37 <a href=‘<c:out value="${editUrl}"/>‘>${p.id}</a> 38 </td> 39 <td> 40 ${p.name} 41 </td> 42 <td> 43 ${p.age} 44 </td> 45 <td> 46 ${p.address} 47 </td> 48 </tr> 49 </c:forEach> 50 </table> 51 </body> 52 </html>
personForm.jsp
1 <%@ page language="java" session="false" 2 contentType="text/html; charset=UTF-8"%> 3 <%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%> 4 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%> 5 <html> 6 <head> 7 <title>Adobocode : Sample Spring MVC using Forms</title> 8 </head> 9 10 <body> 11 <h2> 12 Adobocode : Person Form 13 </h2> 14 <form:form modelAttribute="person"> 15 <form:hidden path="id" /> 16 <fieldset> 17 <table> 18 <tr> 19 <td> 20 Name名字！ 21 </td> 22 <td> 23 <form:input path="name" /> 24 </td> 25 </tr> 26 <tr> 27 <td> 28 Age年龄！ 29 </td> 30 <td> 31 <form:input path="age" /> 32 </td> 33 </tr> 34 <tr> 35 <td> 36 Address地址！ 37 </td> 38 <td> 39 <form:input path="address" /> 40 </td> 41 </tr> 42 <tr> 43 <td> 44 咆哮体！！！ 45 </td> 46 <td> 47 <input type="submit" id="save" name="_eventId_save" value="Save" /> 48 <input type="submit" onClick="history.go(-1);" 49 name="_eventId_cancel" value="Cancel" /> 50 </td> 51 </tr> 52 </table> 53 </fieldset> 54 </form:form> 55 </body> 56 </html>
8.部署在tomcat下运行。
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原文地址：http://www.cnblogs.com/romanhzzz/p/4411599.html
