eclipse 新建 struts项目
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eclipse中新建struts工程 1.新建一个动态网页工程webStruts。 注意设置classes路径为：webStruts/WebContent/WEB-INF/classes 2.引入jar包，如下图：（其中每个jar可以说都是必须的） 3.编写web.xml。 <?xmlversion="1.0"encoding="UTF-8"?> <web-appid="WebApp_9"version="2.4"xmlns="http://java.sun.com/xml/ns/j2ee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/j2eehttp://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>webStruts</display-name> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <welcome-file-list> <welcome-file>querybooks.jsp</welcome-file> </welcome-file-list> </web-app> 4.编写querybooks.jsp。 <%@ page language="java"pageEncoding="UTF-8"%> <%@ taglib prefix="s"uri="/struts-tags"%> <html> <head> <title>查询图书信息</title> </head> <body> <s:formaction="query"> <s:textfieldlabel="书名"name="name"/> <s:submitvalue="查询"/> </s:form> </body> </html> 5.下一步我们编写action。新建一个包com.yuqiaotech.actions，在该包下新建一个QueryAction。新建一个包com.yuqiaotech.DAO，在该包下新建一个实体类BookDAO。 QueryAction.java package com.yuqiaotech.actions; import com.yuqiaotech.DAO.*; import java.util.*; import org.apache.struts2.*; import javax.servlet.http.HttpServletRequest; import com.opensymphony.xwork2.ActionContext; publicclassQueryAction { private Stringname; private Map<String,Integer>result; public Map<String,Integer> getResult() { returnresult; } publicvoidsetResult(Map<String, Integer> result) { this.result = result; } public String getName() { returnname; } publicvoid setName(String name) { this.name = name; } public String execute()throws Exception { try { HttpServletRequestrequest = (HttpServletRequest) ActionContext.getContext().get(StrutsStatics.HTTP_REQUEST); System.out.println(request.getCharacterEncoding()); BookDAO book = new BookDAO(); Map<String,Integer> books = book.getBooks(name); request.setAttribute("result",books); setResult(books); return"result"; //returnSUCCESS; } catch (Exception e) { return"error"; } } } BookDAO.java package com.yuqiaotech.DAO; import java.util.*; publicclassBookDAO { privatestatic Map<String,Integer>books=newHashMap<String, Integer>(); static { books.put("J2EE整合详解与典型案例", 79); books.put("VISUAL C# 2008开发技术实例祥解", 89); books.put("STRUTS 2技术详解", 69); books.put("ASP经典模块开发大全", 69); books.put("ASP.NET 3.5网络数据库开发实例自学手册", 79); books.put("XML开发典型应用：数据标记、处理、共享与分析", 65); } // publicMap<String, Integer> getBooks(String name) { Map<String, Integer> books =newLinkedHashMap<String, Integer>(); for(Map.Entry<String, Integer> entry:BookDAO.books.entrySet()) { if(entry.getKey().toLowerCase().contains(name.toLowerCase())) books.put(entry.getKey(),entry.getValue()); } return books; } } 6.编写struts.xml，直接放在src目录下即可 <?xmlversion="1.0"encoding="UTF-8"?> <!DOCTYPEstrutsPUBLIC "-//Apache Software Foundation//DTD StrutsConfiguration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd"> <struts> <packagename="struts" extends="struts-default"> <actionname="query" class="com.yuqiaotech.actions.QueryAction"> <resultname="result">/result.jsp</result> </action> </package> </struts> 7.编写result.jsp <%@ page language="java"import="java.util.*"pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core"prefix="c"%> <%@ taglib prefix="s"uri="/struts-tags"%> <html> <head> <title>查询结果</title> </head> <body> 使用Java代码获得查询结果<br/> <tableborder="1"> <tr> <td>书名</td> <td>价格</td> </tr> Map<String, Integer> result =(Map<String,Integer>) request.getAttribute("result"); for(Map.Entry<String, Integer> entry: result.entrySet()) { %> <tr><td> <%= entry.getKey()%> </td><td> <%= entry.getValue()%> </td> </tr> <%}%> </table> <p/> 使用JSP标签获得查询结果<br/> <tableborder="1"> <tr> <td>书名</td> <td>价格</td> </tr> <c:forEachvar="entry"items="${result}"> <tr><td> ${entry.key} </td><td> ${entry.value} </tr> </c:forEach> </table> <p/> 使用Struts2标签获得查询结果<br/> <tableborder="1"> <tr> <td>书名</td> <td>价格</td> </tr> <s:iteratorvalue="result"> <tr> <td><s:propertyvalue="key"/></td> <td><s:propertyvalue="value"/></td> </tr> </s:iterator> </table> </body> </html>
