Struts + Spring整合3种方法亲身实践(1)-优快云博客

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Struts + Spring整合3种方法亲身实践(1)

由于最近要做一个项目,用到struts, spring, hibernate;之前我做项目,只用过struts ,hibernate(很落后的表现,呵呵!),所以呢下定决心,练了一把,先写一个最简单的struts程序,输入页面:input.do, 一个文本框,输入信息后,点确确定,跳转到另一页面,显示welcome,**,够简单了吧!为了开发简便快捷,我是在eclipse+myeclipse下完成的,下面我把代码贴出,再加点解释:

Struts-config.xml

<struts-config>

<data-sources />

<form-beans >

<form-bean name="helloWorld" type="com.yourcompany.struts.form.HelloWorldForm" />

</form-beans>

<action-mappings >

<action

attribute="helloWorld"

name="helloWorld"

path="/helloWorld"

scope="request"

type="com.yourcompany.struts.action.HelloWorldAction">

</action>

</action-mappings>

<message-resources parameter="ApplicationResources" />

</struts-config>

很简单的一个结构,一个input.do进入的输入页面input.jsp,击点确定,跳转到helloworld.do,经他处理后,跳转到show, that’s OK!

web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<servlet-name>action</servlet-name>

<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

<init-param>

<param-name>config</param-name>

<param-value>/WEB-INF/struts-config.xml</param-value>

</init-param>

<init-param>

<param-name>debug</param-name>

<param-value>3</param-value>

</init-param>

<init-param>

<param-name>detail</param-name>

<param-value>3</param-value>

</init-param>

<load-on-startup>0</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>action</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

<jsp-config>

<taglib-uri>/tags/struts-bean</taglib-uri>

<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>

</taglib>

<taglib-uri>/tags/struts-html</taglib-uri>

<taglib-location>/WEB-INF/struts-html.tld</taglib-location>

</taglib>

</jsp-config>

</web-app>

HelloWorldAction类:

package com.yourcompany.struts.action;

//节省长度,导入的类就不贴了

publicclass HelloWorldAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response) {

HelloWorldForm helloworld=(HelloWorldForm)form;

request.setAttribute("helloWorld", helloworld.getMsg());

return mapping.findForward("show");

}

HelloWorldForm类:

package com.yourcompany.struts.form;

publicclass HelloWorldForm extends ActionForm {

privatestaticfinallongserialVersionUID = 1L;

private String msg;

public ActionErrors validate(ActionMapping mapping,

HttpServletRequest request) {

returnnull;

}

publicvoid reset(ActionMapping mapping, HttpServletRequest request) {

}

public String getMsg() {

returnmsg;

}

publicvoid setMsg(String msg) {

this.msg = msg;

}

input.jsp

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="/tags/struts-bean" prefix="bean" %>

<%@ taglib uri="/tags/struts-html" prefix="html" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html:html lang="true">

<head>

<html:base />

</head>

<body>

<html:form action="/helloWorld" method="POST">

<bean:message key="welcome"/><html:text property="msg"/>

<html:submit>sumbit</html:submit>

</html:form>

</body>

</html:html>

show.jsp

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="/tags/struts-bean" prefix="bean" %>

<%@ taglib uri="/tags/struts-html" prefix="html" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html:html lang="true">

<head>

<html:base />

</head>

<body>

<bean:message key="input"/>"${helloWorld}"<br/>

</body>

</html:html>

无论哪种方法都要在struts-config.xml里注册一下Spring插件:

在struts-config.xml中加上: (红色为加入部分)

<message-resources parameter="ApplicationResources" />

<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">

<set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml" />

</plug-in>

</struts-config>

为了体现Spring的IOC,我们再加多几个类:
一个接口:

package com.yourcompany.struts.action;

import com.yourcompany.struts.form.HelloWorldForm;

public interface HelloWorldService {

public abstract String addMesg(HelloWorldForm helloworld);

}

实现这个接口的类:

package com.yourcompany.struts.action;

import com.yourcompany.struts.form.HelloWorldForm;

public class HelloWorldServiceImpl implements HelloWorldService{

public String addMesg(HelloWorldForm helloworld) {

return helloworld.getMsg();

}

Spring的配置文件: (位置/WEB-INF/applicationContext.xml)

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

</beans>