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总结之Struts

作者：未知 来源：月光软件站 加入时间：2005-2-28　月光软件站

在用Struts的                 

<logic:iterate id="testqclist" name="testQCActionForm" ="result" indexId="index" >

<bean:write name="testqclist" property="saamsampleid" />                              <bean:write name="testqclist" property="sampleid" />

<input type="hidden" name="calcresultVal"  value="<bean:write name="testqclist" property="calcresult" />" >

</logic:iterate>

说明：

参数是Property参数

参数名称

说明

name

struts-config里面的ActionForm 的名字

property

Form里面的一个arraylist属性

id

标识名，和里面标签的name名字一样

IndexId

显示记录条数的index，

 

indexId：的有个用法是：<logic:iterate i>里面有checkbox的时候，要选择特定的记录数量的时候，可以用到这个属性。

这时要在FORM里添加几个属性

1．  给每个属性添加一个集合属性

2．  添加一个方法保存FORM的对象。返回一个 ArrayList 对象给FORM原有的那个
Result 属性。

在JSP页面里面

       每个显示的数据里面都加一个HIDEEN

       当提交的时候就可以吧记录保存在FORM里面的集合属性里面。

代码如下

Action:

protected void performDBTask (ActionFormBase actionForm,

                                HttpServletRequest request,

                                HttpServletResponse response

                                ) throws SQLException{

    String methodName = "performDBTask()";

    //ActinForm

    TestQCActionForm testQCActionForm = (TestQCActionForm)actionForm;

    try{

      ArrayList handExcel = testQCActionForm.handExcelList();

      testQCActionForm.setResultlist(handExcel);

         actionForm.setForward ("success");

} catch (Exception e){

      System.err.println (className + "." + methodName + "==>" + e.getMessage ());

    }

  }

   

FORM代码=======================================

private String[] checkboxVal;
private String[] testidVal;
private String[] sampleidVal;
private String[] qctypecdVal;
private String[] datesampledVal;
private String[] testseqVal;
private String[] calcresultVal;
private String[] saamsampleidVal;

   //Hander Select data

  public ArrayList handExcelList (){

    java.util.ArrayList list = new java.util.ArrayList ();

    if (checkboxVal != null && checkboxVal.length > 0){

      for (int i = 0; i < checkboxVal.length; i++){

        int chkVal = Integer.parseInt(checkboxVal[i]);

        TestQCActionForm checkform = new TestQCActionForm ();

        checkform.setSaamsampleid (datesampledVal[chkVal].toString());

        checkform.setSaamsampleid(saamsampleidVal[chkVal].toString());

        checkform.setSampleid (sampleidVal[chkVal].toString());

        checkform.setQctypecd (qctypecdVal[chkVal].toString());

        checkform.setTestid (testidVal[chkVal].toString());

        checkform.setTestseq (testseqVal[chkVal].toString());

       checkform.setCalcresult(Double.parseDouble(calcresultVal[chkVal]));

        checkform.setDatesampled(datesampledVal[chkVal].toString());

        list.add (checkform);

      }

    }

    return list;

  }

JSP页面===========================================

<lims:notEmpty name="testQCActionForm" property="result">

        <logic:iterate id="testqclist" name="testQCActionForm" property="result" indexId="index" >

          <tr bgcolor="#FFFFFF" onMouseOver="this.bgColor='#ECF4F9'" onMouseOut="this.bgColor='#FFFFFF'">

            <td height="26" bgcolor="#EEEEEE"><div align= "center" >

                <input type="checkbox" name="checkboxVal" value="<%=index%>" >

            </div></td>

            <td ><div align="center">

                <input type="hidden" name="saamsampleidVal"  value="<bean:write name="testqclist" property="saamsampleid" />" >

                     <bean:write name="testqclist" property="saamsampleid" />

            </div></td>

            <td bgcolor="#EEEEEE"><div align="center" >

                <input type="hidden" name="sampleidVal"  value="<bean:write name="testqclist" property="sampleid" />" >

                     <bean:write name="testqclist" property="sampleid" />

            </div></td>

            <td><div align="center">

                <input type="hidden" name="qctypecdVal"  value="<bean:write name="testqclist" property="qctypecd" />" >

                     <bean:write name="testqclist" property="qctypecd" />

            </div></td>

            <td ><div align="center">

                <input type="hidden" name="testidVal"  value="<bean:write name="testqclist" property="testid" />" >

                     <bean:write name="testqclist" property="testid" />

            </div></td>

            <td bgcolor="#EEEEEE"><div align="center">

                <input type="hidden" name="testseqVal"  value="<bean:write name="testqclist" property="testseq" />" >

                     <bean:write name="testqclist" property="testseq" />

            </div></td>

            <td ><div align="center">

                <input type="hidden" name="calcresultVal"  value="<bean:write name="testqclist" property="calcresult" />" >

                     <bean:write name="testqclist" property="calcresult" />

            </div></td>

            <td ><div align="center">

                <input type="hidden" name="datesampledVal"  value="<bean:write name="testqclist" property="datesampled" />

" >                        <bean:write name="testqclist" property="datesampled" />

            </div></td>

          </tr>

        </logic:iterate>

        </lims:notEmpty>

就是在啊ACTION里面转向（actionForm.setForward ("success");）之前设置显示信息 首先要在.propertits里面设置 如： del.msg= You Deleted Form(s) successfully 在ACTION里面 ActionErrors errors = new ActionErrors (); errors.add ("addInfoMsg", new ActionError ("del.msg")); saveErrors (request, errors); actionForm.setForward ("success"); web-xml application com.lims.resources.Resource 此外还有一些做法 表示 显示集合中的所有错误 表示显示存储在missing.name关键字的错误

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