spring mvc基础学习笔记

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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>            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>