扩充struts验证框架，进行多表单页面的验证

扩充struts验证框架，进行多表单页面的验证（转）

struts的validator的客户端验证，不能进行多表单页面的验证，原因是由<html:script>标签生成的javascipt是根据每个表单，生成一段代码。例如：

<html:javascript formName="searchSgbySjForm" dynamicJavascript="true" staticJavascript="false"/>
生成  :
             var bCancel = false; 
             function validateSearchSgbySjForm(form)
            {                                                                         
                if (bCancel)       return true;        
                else        return validateRequired(form) && validateDate(form);   
            }
            function required ()
           {     
               this.aa = new Array("sgfssjq", "事故发生时间起 不可为空.", new Function ("varName", "this.datePatternStrict='yyy-MM-dd'; return thisvarName];"));
               this.ab = new Array("sgfssjz", "事故发生时间止 不可为空.", new Function ("varName", "this.datePatternStrict='yyy-MM-dd';  return this[varName];"));   
           }

           function DateValidations ()
          {
              this.aa = new Array("sgfssjq", "事故发生时间起 不是有效的日期类型.", new Function ("varName", "this.datePatternStrict='yyy-MM-dd';  return this  [varName];"));
             this.ab = new Array("sgfssjz", "事故发生时间止 不是有效的日期类型.", new Function ("varName", "this.datePatternStrict='yyy-MM-dd';  return this[varName];"));   
         }

如果有多个的话required和DateValidations 都会重复的，而javascript是只认最后一个函数的。所以，会导致验证出错。

再写一个标签 ，主要根据原来的代码修改，代码如下:

package com.tmri.acd.tag;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.BodyTagSupport;

import org.apache.commons.validator.Field;
import org.apache.commons.validator.Form;
import org.apache.commons.validator.ValidatorAction;
import org.apache.commons.validator.ValidatorResources;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.commons.validator.Var;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.config.ModuleConfig;
import com.tmri.acd.tag.TagUtils;
import org.apache.struts.util.MessageResources;
import org.apache.struts.validator.Resources;
import org.apache.struts.validator.ValidatorPlugIn;
import java.util.StringTokenizer;

public class JavascriptValidatorTag extends BodyTagSupport
{
 private static final Comparator actionComparator = new Comparator()
{       
            public int compare(Object o1, Object o2)
           {
                 ValidatorAction va1 = (ValidatorAction) o1;           
                 ValidatorAction va2 = (ValidatorAction) o2;
                 if ((va1.getDepends() == null || va1.getDepends().length() == 0) && (va2.getDepends() == null || va2.getDepends().length() == 0))
                {               
                    return 0;
                }
                else if (  (va1.getDepends() != null && va1.getDepends().length() > 0)  && (va2.getDepends() == null || va2.getDepends().length() == 0))
               {  
                   return 1;
               }
}