头大的问题？高手请进……
public class SubItemAction extends ActionSupport{
private int id ;
private SubItem subItem ;
private String manager ;
private SubItemManager subItemManager ;
private String subName ;
private Item item ;
private String subDescription ;
private List<Item> items ;
//版主
private User user ;
//添加子栏目
public String addSubItem(){
user.setName(manager);
//查找父栏目
item = itemManager.find(id);
subItem.setItem(item);
subItem.setManager(user);
subItem.setSubItemName(subName);
subItem.setSubItemDescription(subDescription);
//添加子栏目
boolean bool = subItemManager.add(subItem);
if(bool){
return "success";
}else{
return "fail" ;
}
}
//添加子栏目页面
public String addSubItemInput(){
items = itemManager.browse();
return "input";
}
public String getSubName() {
return subName;
}
public void setSubName(String subName) {
this.subName = subName;
}
public String getSubDescription() {
return subDescription;
}
public void setSubDescription(String subDescription) {
this.subDescription = subDescription;
}
}
struts.xml配置：
<action name="subItem" class ="com.bbs.action.SubItemAction" method="{1}">
<result name="input">
/jsp/admin/subItem-input.jsp
</result>
<result name="success">
/jsp/admin/subItem-success.jsp
</result>
<result name="fail">
/jsp/admin/subItem-fail.jsp
</result>
</action>
public class SubItemManager {
//增加子栏目
public boolean add(SubItem subItem){
String subItemName = subItem.getSubItemName();
//查找子栏目
SubItem sub = subItemDAO.find(subItemName);
if(sub == null){
//查找用记
User user = userDAO.exist(subItem.getManager().getName());
if(user != null){
//设为版主
subItem.setManager(user);
//添加子栏目
subItemDAO.add(subItem);
return true ;
}
return false ;
}else{
return false ;
}
}
}
public classs SubItemDAO {
private HibernateTemplate hibernateTemplate ;
//增加子栏目
public void add(SubItem subItem){
hibernateTemplate.save(subItem);
}
//以名字方式查找子栏目
public SubItem find(String subItemName){
List<SubItem>items = hibernateTemplate.find("from SubItem where subItemName=?",subItemName);
if(items.size() > 0){
return items.get(0);
}else {
return null ;
}
}
}
subItem-input.jsp页面代码：
<%@ page language = "java" import = "java.util.*" pageEncoding ="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>
<body>
<form action="subItem-addSubItem">
<table width="468" border="1" align="center">
<tr>
<td colspan="2" align="center">新增子栏目</td>
</tr>
<tr>
<td width="118">子栏目名称：</td>
<td width="334"><input type="text" name="subName"></td>
</tr>
<tr>
<td width="118">所属栏目：</td>
<td width="334">
<select name="id">
<s:iterator value="items" var="it">
<option value="${it.id}">${it.itemName}</option>
</s:iterator>
</select>
</td>
<tr>
<td>子栏目介绍：</td>
<td><input name="subDescription" type="text" size="50"></td>
</tr>
<tr>
<td>子栏目版主：</td>
<td><input name="manager" type="text"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" value="提交">
<input type="reset" value="重置"> </td>
</tr>
</table>
</form>
<s:debug></s:debug>
</body>
</html>
subItem-success.jsp页面代码：
<%@ page language = "java" import = "java.util.*" pageEncoding ="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>添加子栏目成功！</title>
</head>
<body>
${subName}
添加子栏目成功！
<form action="subitem-addSubItem">
<input type="submit" value="返回"/>
</form>
</body>
</html>
subItem-fail.jsp页面代码：
<%@ page language = "java" import = "java.util.*" pageEncoding ="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>添加子栏目成功！</title>
</head>
<body>
添加子栏目失败！
<form action="subItem-addSubItemInput">
<input type="submit" value="返回"/>
</form>
<s:debug></s:debug>
</body>
</html>
现在怪事出现了？在“SubItemAction” 类中有“subItem.setSubItemName(subName);
subItem.setSubItemDescription(subDescription);”，就会跳转到“subItem-fail.jsp”页面，
没有上面的语句就跳转到“subItem-success.jsp”页面。
我想知道这是为什么？难道还不能让人设置subItem的属性？？
[解决办法]
跟那没关系。
boolean bool = subItemManager.add(subItem);
看bool的返回值，返回值为true,就跳转到subItem-success.jsp；否则跳转到subItem-fail.jsp。
楼主看subItemManager的add方法吧,如果没有subItem.setSubItemName(subName) 这句，是不是造成方法返回值是false了;
