spring mvc基础学习笔记

使用spring mvc完成

通过

addPerson.jsp

添加

Person

的name, age, id，然后写入cookie

通过

listPerson.jsp

获取保存在cookie中的name,age,id然后显示

web.xml

配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.5"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee   http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <!-- 配置文件位置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring-servlet.xml
</param-value>
</context-param>

<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>

<servlet>
<servlet-name>spring</servlet-name>
<servlet-class<
4000
/span>>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/spring-servlet.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.mvc</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

spring-servlet.xml

配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>
<!-- 指明视图页面-->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/person/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<!-- controller映射配置-->
<bean id="urlHandlerMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="addPerson.mvc">personController</prop>
</props>
</property>
</bean>
<!-- 封装的方法 -->
<bean id="personService" class="com.cq.spring.service.IPersonService">
</bean>
<!-- controlller配置 -->
<bean id="personController"
class="com.cq.spring.controller.PersonController">
<property name="personService" ref="personService"></property>
</bean>

</beans>

contorller

编写

package com.cq.spring.controller;

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

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

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

import com.cq.spring.bean.Person;
import com.cq.spring.service.IPersonService;

public class PersonController extends AbstractController
{
IPersonService personService;
protected ModelAndView handleRequestInternal(HttpServletRequest arg0,
HttpServletResponse arg1) throws Exception
{
// TODO Auto-generated method stub
String action=arg0.getParameter("action");
if("add".equals(action))
return this.add(arg0, arg1);
return this.list(arg0, arg1);
}
protected ModelAndView add(HttpServletRequest req, HttpServletResponse res)
{
Person mperson=new Person();
mperson.setAge(Integer.parseInt(req.getParameter("age")));
mperson.setId(Integer.valueOf(req.getParameter("id")));
mperson.setName(req.getParameter("name"));
personService.addPerson(mperson, req, res);
return new ModelAndView("addPerson");
}
protected ModelAndView list(HttpServletRequest req, HttpServletResponse res)
{
List<Person> resultList=new ArrayList<Person>();
resultList=personService.getPerson(req, res);
return new ModelAndView("listPerson", "resultList", resultList);
}
public IPersonService getPersonService()
{
return personService;
}
public void setPersonService(IPersonService personService)
{
this.personService = personService;
}
}

用到的java bean

package com.cq.spring.bean;

public class Person
{
private int id;
private String name;
private int age;
public int getId()
{
return id;
}
public void setId(int id)
{
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}
}
package com.cq.spring.service;

public interface IService
{
public void service();
}
package com.cq.spring.service;

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

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

import com.cq.spring.bean.Person;

public class IPersonService implements IService
{

@Override
public void service()
{
// TODO Auto-generated method stub
System.out.println("test ok");
}
public void addPerson(Person mperson, HttpServletRequest req, HttpServletResponse res)
{
List<Cookie> cookieList=new ArrayList<Cookie>();
Cookie m1cookie=new Cookie("name", mperson.getName());
cookieList.add(m1cookie);
Cookie m2cookie=new Cookie("age", String.valueOf(mperson.getAge()));
cookieList.add(m2cookie);
Cookie m3cookie=new Cookie("id", String.valueOf(mperson.getId()));
cookieList.add(m3cookie);
Iterator<Cookie> it=cookieList.iterator();
for(; it.hasNext();)
{
Cookie tempCookie=it.next();
res.addCookie(tempCookie);
}
}
public List<Person> getPerson(HttpServletRequest req, HttpServletResponse res)
{
List<Person> list=new ArrayList<Person>();
Cookie[] cookies=req.getCookies();
Person mperson=new Person();
for(Cookie cookie: cookies)
{
if("name".equals(cookie.getName()))
mperson.setName(cookie.getValue());
if("age".equals(cookie.getName()))
mperson.setAge(Integer.parseInt(cookie.getValue()));
if("id".equals(cookie.getName()))
mperson.setId(Integer.parseInt(cookie.getValue()));
}
list.add(mperson);
return list;
}
}

视图页面

index.jsp

addPerson.jsp

listPerson.jsp

代码如下

index.jsp

<!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>
<jsp:forward page="/WEB-INF/person/addPerson.jsp" />
</body>
</html>

addPerson.jsp

<!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="addPerson.mvc?action=add" method="post">
name:<input name="name" />
age:<input name="age" />
id:<input name="id" />
<input type="submit" />
</form>
<a href="addPerson.mvc?action=list">查看</a>
</body>
</html>

listPerson.jsp

<!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>
<style>
table,th,td{border:1px solid black;
cellspacing:0px;
}
</style>
</head>
<body>
<table>
<tr>
<th>name</th>
<th>age</th>
<th>id</th>
</tr>
<c:forEach var="person" items="${requestScope.resultList}">
<tr>
<td>${person.name}</td>
<td>${person.age}</td>
<td>${person.id}</td>
</tr>
</c:forEach>
</table>
<a href="index.jsp">修改添加</a><!--web-inf下的页面不能直接访问-->
</body>
</html>

结果页面

直接访问

http://localhost:8080/springmvc/

输入数据



提交查看