Struts2 总结

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pageContext.request.contextPath

<package name="background" namespace="/back" extends="struts-default">

  <action name="studentList" class="com.java1234.action.BackStudent" method="show">
  <result name="success">${pageContext.request.contextPath}/success.jsp</result>
  </action>
  

  </package>

分模块配置方法。http://localhost:8080/HeadFirstStruts2Chap02_05

<struts>
  <include file="cheliang.xml"></include>
  <include file="zichan.xml"></include>
</struts>


动态方法http://localhost:8080/HeadFirstStruts2Chap02_05/Student_add

前台中使用方法:Action!result1

<constant name="struts.enable.DynamicMethodInvocation" value="true" />
  
  <package name="manage" namespace="/" extends="struts-default">
 
  <!-- <action name="student_*" class="com.java1234.action.StudentAction" method="{1}">
  <result name="success">success.jsp</result>
  </action>
 
  <action name="grade_*" class="com.java1234.action.GradeAction" method="{1}">
  <result name="success">success.jsp</result>
  </action> -->
 
  <!-- <action name="*_*" class="com.java1234.action.{1}Action" method="{2}">
  <result name="success">success.jsp</result>
  </action> -->
 
  <action name="student" class="com.java1234.action.StudentAction">
  <result name="success">success.jsp</result>
  </action>
 
  <action name="grade" class="com.java1234.action.GradeAction">
  <result name="success">success.jsp</result>
  </action>


文件上传 http://localhost:8080/HeadFirstStruts2Chap08/fileupload.jsp


Struts2 文件上传基于Struts2 拦截器实现;
Struts2 文件上传使用的是fileupload 组件;
Form 配置enctype="multipart/form-data";
Struts2 获取上传文件:name (name 是文件表单的name)
Struts2 获取上传文件名:name+FileName;
Struts2 获取上传文件的类型:name+ContentType;


<param name="allowedTypes">image/bmp,image/x-png,image/gif,image/jpg,image/jpeg</param>
<param name="maximumSize">81101</param>
<s:fielderror></s:fielderror>


<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!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>
<s:fielderror></s:fielderror>
<form action="upload" method="post" enctype="multipart/form-data">
文件:<input type="file" name="java1234"/><br/>
<input type="submit" value="提交"/>
</form>
 


</body>

</html>

struts2 获取session 的方法 (第二个很方便)

http://blog.sina.com.cn/s/blog_8adda8d201018etp.html

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