java - struts2如何从jsp读取值迭代器到action

Question

我是java和struts2的新手，请帮忙。从一个操作中，我已读取并处理在 jsp 中创建的列表

我的问题是，如何从迭代器的操作中访问数据？

JSP页面

<s:iterator value="settoriList" var="myObj">
<tr>
<td>
   <s:if test="#myObj.selected == 1">
      <s:checkbox name="selected"   fieldValue="%{cdSettore}" checked="checked"/>
      <s:property value="cdSettore" />
   </s:if>
   <s:if test="#myObj.selected == 0">
      <s:checkbox name="selected"  value="false" fieldValue="%{cdSettore}"  />
      <s:property value="cdSettore" />
   </s:if>
</td>
<td><s:property value="dsSettore" /></td>
<td><s:property value="dtIniVali" /></td>
<td><s:property value="dtFineVali" /></td>
</tr>
</s:iterator>
 </table>
  <s:hidden name="cdConve" />
  <s:hidden name="process"   value="saveSettori"/>
</s:form>

这是我尝试访问数据的方式

private List<GenSettori> settoriList;

public List<GenSettori> getSettoriList() {
    return settoriList;
}
public void setSettoriList(List<GenSettori> settoriList) {
    this.settoriList = settoriList;
}

private String[] selected;

public String[] getSelected() {
    return selected;
}
public void setSelected(String[] selected) {
    this.selected = selected;
}

--------
   settoriList = new ArrayList<GenSettori>();
   System.out.println("list sett: "+settoriList);
    for(int i=0;i<getSettoriList().size();i++){
     if (getSelected()[i]!=""){
         System.out.println("not selected "+getSelected()[i]);
  }      
   }

---------

我的页面由选定的字段、描述和日期组成。

提前感谢您的帮助

Answer 1

您可以通过以下几行从jsp获取字符串数组到操作类

在jsp中

<s:hidden name="cdSettore" value="%{cdSettore}"></s:hidden>

如果您愿意，可以使用

<s:if test="#myObj.selected == 0">
   <s:hidden name="cdSettore" value="%{cdSettore}"></s:hidden>
</s:if>

一次都没有被选中

实际操作类

private String[] cdSettore;

public void setCdSettore(String[] cdSettore) {
    this.cdSettore = cdSettore;
}
public String[] getCdSettore() {
    return cdSettore;
}

for(int i=0;i<getCdSettore().length;i++){
    System.out.println("not selected :"+getCdSettore()[i]);
} 

或者你可以这样做

在jsp中

<s:hidden name="cdSettore" value="%{cdSettore}"></s:hidden>
<s:if test="#myObj.selected == 1">
  <s:checkbox name="selected" fieldValue="%{cdSettore}" checked="checked"/>
  <s:property value="cdSettore" />
</s:if>
<s:if test="#myObj.selected == 0">
  <s:checkbox name="selected"  fieldValue="%{cdSettore}"  />
  <s:property value="cdSettore" />  
</s:if>     

在行动类

  for(int i=0;i<getCdSettore().length;i++){
        int flag=0;
        for(int j=0;j<getSelected().length;j++){
            if(getCdSettore()[i].equalsIgnoreCase(getSelected()[j]))
            {
                flag++;
            }
        }
        if(flag==0)
        {
         System.out.println("not selected :"+getCdSettore()[i]);
        }
    }