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在开发工具上进行struts的配置
1）新建项目，为项目添加Struts开发支持
2）为项目添加Struts开发支持，在项目点击右键，myeclipse->Add Struts Capabilities。选择支持的struts版本
3）在项目下的WebRoot下新建一个jsp文件。在Template to use下选在2中选择的struts版本
配置hello.jsp
<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>
<html:html lang="true">
<head>
<html:base />
<title>hello.jsp</title>
</head>
<body>
<html:form action = "" method = "post">
请输入信息：<html:text property = "info"></html:text>
<html:submit value = "显示"></html:submit>
</html:form>
</body>
</html:html>
在struts之中，所有的处理类都是Action，都要绑定ActionForm
1)点击空白处，选着custom........->shortcuts->MyEclipse->Web-Struts->Struts 1.3->Struts 1.3 Form,Action......
2)在lcp.struts->new->Struts 1.3Form,Action,Jsp
这里的info属性和表单对应。
点击next，把Input Sroce改成/hello.jsp
WebRoot/lib/struts-config.xml里的action配置path表示的是提交路径。input表示的是错误信息的显示页面
lop.struts.form/HelloForm.java里面的validate()方法，主要是晚场具体的验证操作
ActionErrors是一组信息，每一个错误信息依靠ActionMessage保存。
struts之中，所有的错误信息都保存在资源文件里的
定义资源文件:
ApplicationResources.properties:error.info = 输出错误信息。此时不能保存，不支持中文。通过jdk转码。找到自己安装的jdk路径：C:\Program Files (x86)\Java\jdk1.8.0_11\bin里的native2ascii.exe。输入想要的中文：
输入的消息不能为空
\u8f93\u5165\u7684\u6d88\u606f\u4e0d\u80fd\u4e3a\u7a7a
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
ActionErrors errors = new ActionErrors();
if(this.info == null || "".equals(this.info)){//info的输入信息为空
//保存错误信息
errors.add(info,new ActionMessage("errors.info"));
}
return null;
}
此方法若返回的是null，或者ActionErrors对象里美欧任何的内容，则表示没有任何错误
在Action之中，如果想要完成跳转功能，需要配置。struts-config.xml文件中完成。。每一个action配置一个跳转路径。以后想要修改跳转路径，直接修改配置文件即可。
ApplicationResources.properties文件配置中文编码集，转码问题。
# Resources for parameter ‘lop.struts.ApplicationResources‘ # Project hh error.info =\u60A8\u8F93\u5165\u7684\u8FC7\u957F
lop.struts.action/HelloAction.java
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package lop.struts.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import lop.struts.form.HelloForm;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
/**
* MyEclipse Struts
* Creation date: 10-16-2014
*
* XDoclet definition:
* @struts.action path="/hello" name="helloForm" input="/hello.jsp" scope="request" validate="true"
*/
public class HelloAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
HelloForm helloForm = (HelloForm) form;// TODO Auto-generated method stub
String info = helloForm.getInfo();//所有的内容从ActionForm取出
if(info.length() > 15){//数据过长
ActionMessages errors = new ActionMessages();
errors.add("info", new ActionMessage("msg.info"));
//super.saveErrors(request, errors);//保存错误信息
super.saveMessages(request, errors);//保存错误信息
return mapping.getInputForward();//取得input配置的路径
}else{
request.setAttribute("msg", info);//将信息设置在request范围之中
}
return mapping.findForward("show");//返回一个映射路径
}
}
lop.struts.form/HelloForm.java
/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package lop.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
/**
* MyEclipse Struts
* Creation date: 10-16-2014
*
* XDoclet definition:
* @struts.form name="helloForm"
*/
public class HelloForm extends ActionForm {
/*
* Generated fields
*/
/** info property */
private String info;
/*
* Generated Methods
*/
/**
* Method validate
* @param mapping
* @param request
* @return ActionErrors
*/
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
ActionErrors errors = new ActionErrors();
if(this.info == null || "".equals(this.info)){//info的输入信息为空
//保存错误信息
errors.add(info,new ActionMessage("error.info"));
}
return errors;
}
/**
* Method reset
* @param mapping
* @param request
*/
public void reset(ActionMapping mapping, HttpServletRequest request) {
// TODO Auto-generated method stub
}
/**
* Returns the info.
* @return String
*/
public String getInfo() {
return info;
}
/**
* Set the info.
* @param info The info to set
*/
public void setInfo(String info) {
this.info = info;
}
}
lib/ruts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans >
<form-bean name="helloForm" type="lop.struts.form.HelloForm" />
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action
attribute="helloForm"
input="/hello.jsp"
name="helloForm"
path="/hello"
scope="request"
type="lop.struts.action.HelloAction">
<forward name = "show" path = "/hello.jsp"></forward>
</action>
</action-mappings>
<message-resources parameter="lop.struts.ApplicationResources" />
</struts-config>
hello.jsp
<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>
<html:html lang="true">
<head>
<html:base />
<title>hello.jsp</title>
</head>
<body>
<html:messages id = "info" message = "true">
$(info)
</html:messages>
<html:errors/>
<logic:present name = "msg" scope = "request">
<H2>${msg}</H2>
</logic:present>
<html:form action = "hello.do" method = "post">
请输入信息：<html:text property = "info"></html:text>
<html:submit value = "显示"></html:submit>
</html:form>
</body>
</html:html>
标签：style blog http color io os ar java for
原文地址：http://www.cnblogs.com/lcpholdon/p/4029845.html
