1.form 的代码
package com.randy.nrs.login.form;
import org.apache.struts.action.ActionForm;
import com.randy.nrs.login.bean.UserBean;
public class LoginForm extends ActionForm {
private UserBean detailObject = new UserBean();
public UserBean getDetailObject() {
return detailObject;
}
public void setDetailObject(UserBean detailObject) {
this.detailObject = detailObject;
}
}
import org.apache.struts.action.ActionForm;
import com.randy.nrs.login.bean.UserBean;
public class LoginForm extends ActionForm {
private UserBean detailObject = new UserBean();
public UserBean getDetailObject() {
return detailObject;
}
public void setDetailObject(UserBean detailObject) {
this.detailObject = detailObject;
}
}
2. jsp代码
<%@ page language=
"java" contentType=
"text/html; charset=UTF-8" pageEncoding=
"UTF-8"%>
<%@ taglib prefix= "bean" uri= "/WEB-INF/struts-bean.tld"%>
<%@ taglib prefix= "html" uri= "/WEB-INF/struts-html.tld"%>
<%@ taglib prefix= "logic" uri= "/WEB-INF/struts-logic.tld"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>登录页面</title>
</head>
<body>
<html:form action="loginAction" method="post">
用户名：<html:text property="detailObject.username"></html:text><br/>
密码：<html:password property="detailObject.password"></html:password><br/>
<html:submit>提交</html:submit>
</html:form>
</body>
</html>
<%@ taglib prefix= "bean" uri= "/WEB-INF/struts-bean.tld"%>
<%@ taglib prefix= "html" uri= "/WEB-INF/struts-html.tld"%>
<%@ taglib prefix= "logic" uri= "/WEB-INF/struts-logic.tld"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>登录页面</title>
</head>
<body>
<html:form action="loginAction" method="post">
用户名：<html:text property="detailObject.username"></html:text><br/>
密码：<html:password property="detailObject.password"></html:password><br/>
<html:submit>提交</html:submit>
</html:form>
</body>
</html>
遇到的错误
org.apache.catalina.core.ApplicationDispatcher invoke
严重: Servlet.service() for servlet jsp threw exception
javax.servlet.jsp.JspException: Invalid argument looking up property: "bean.property" of bean:
严重: Servlet.service() for servlet jsp threw exception
javax.servlet.jsp.JspException: Invalid argument looking up property: "bean.property" of bean:
"org.apache.struts.taglib.html.BEAN"
at org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:960)
at org.apache.struts.taglib.html.BaseFieldTag.prepareValue(BaseFieldTag.java:121)
at org.apache.struts.taglib.html.BaseFieldTag.renderInputElement(BaseFieldTag.java:102)
at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.java:81)
at org.apache.struts.taglib.TagUtils.lookup(TagUtils.java:960)
at org.apache.struts.taglib.html.BaseFieldTag.prepareValue(BaseFieldTag.java:121)
at org.apache.struts.taglib.html.BaseFieldTag.renderInputElement(BaseFieldTag.java:102)
at org.apache.struts.taglib.html.BaseFieldTag.doStartTag(BaseFieldTag.java:81)
在网上找到的解决方案：
这是个隐含其它异常的异常，光看异常提示，是解决不了问题的
错误提示，找不到bean.property属性实际是个假像，实际上因为hibernate的lazy=true后，在action中处理时
bean是个被lazy掉的对像，照常赋值，但formBean的bean属性没有被初始化，所以会出现上述错误
解决办法是，将bean放入formBean之前，先将其初始化。
错误提示，找不到bean.property属性实际是个假像，实际上因为hibernate的lazy=true后，在action中处理时
bean是个被lazy掉的对像，照常赋值，但formBean的bean属性没有被初始化，所以会出现上述错误
解决办法是，将bean放入formBean之前，先将其初始化。
将应用的form 对象，引用的userbean 初始化了。
private UserBean detailObject =new UserBean();
本文转自 randy_shandong 51CTO博客，原文链接：http://blog.51cto.com/dba10g/244610，如需转载请自行联系原作者
