dwr

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web.xml

增加

   <servlet>
    <servlet-name>dwr-invoker</servlet-name>
    <servlet-class>uk.ltd.getahead.dwr.DWRServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>dwr-invoker</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
</servlet-mapping>

dwr.xml 与web.xml同目录，内容如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr/dwr10.dtd">
<dwr>
<allow>
    <create creator="new" javascript="JDate">
      <param name="class" value="java.util.Date"/>
    </create>
     <create creator="new" javascript="JIDCard">
      <param name="class" value="share.tools.IDCard"/>
      <include method="Verify"/>

    </create>
</allow>
</dwr>

网页

var jg;
function check(idk){

JIDCard.Verify(idk,load) ;

return jg;

}
function load(data)
{
jg=data;
if(jg!=true)
{
alert("您的身份证号码有误，请重新输入！");
document.all.indentity.focus();
return false;
}
else{

}
}

if(check(document.all.indentity.value.trim())!=true)//这样使用
{
return false;
}

</script>

//验证身份证号
public class IDCard {

//wi=2(n-1)(mod11)
final int[] wi={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};
//verifydigit
final String[] vi={"1","0","X","9","8","7","6","5","4","3","2"};
private int[] ai=new int[18];
public IDCard(){}
//verify
public boolean Verify(String idcard)
{
if(idcard.length()==15)
{
   idcard=uptoeighteen(idcard);
}
if(idcard.length()!=18)
{
   return false;
}
String verify=idcard.substring(17,18);
if(verify.equals(getVerify(idcard)))
{
   return true;
}
return false;
}
public String getVerify(String eightcardid)
{
int remaining=0;
if(eightcardid.length()==18)
{
   eightcardid=eightcardid.substring(0,17);
}
if(eightcardid.length()==17)
{
   int sum=0;
   for(int i=0;i<17;i++)
   {
    String k = eightcardid.substring(i,i+1);
    ai[i] = Integer.parseInt(k);
   }
   for(int i=0;i<17;i++)
   {
    sum = sum + wi[i]*ai[i];
   }
   System.out.println(sum);
   remaining = sum%11;
}
return remaining==2?"X":vi[remaining];
}
//15updateto18
public String uptoeighteen(String fifteencardid)
{
String eightcardid = fifteencardid.substring(0,6);
eightcardid = eightcardid + "19";
eightcardid = eightcardid + fifteencardid.substring(6,15);
eightcardid = eightcardid + getVerify(eightcardid);
return eightcardid;
}
}