webservice接口使用时报错

java.io.IOException: Server returned HTTP response code: 500 for URL: http://10.235.202.170:53088/00.0001.O_OtherBusi_serviceHandler
这是什么意思呀？
String s = ""+
"soapenv:Header"+
""+
""+
"00.0001.06"+
"10.0001.Inmspss_smsSend"+
"00.0001.06201511171300550001234567890"+
"20151117130055000"+
""+
"V0.1"+
""+
""+
""+
""+
""+
""+
""+
"/soapenv:Header"+

"<soapenv:Body>"+
/*"<![CDATA["+
"<phoneNums>13311568558</phoneNums>"+
"<sendTime>2015-11-17 10:59:25</sendTime>"+
"<smsContent>aawawawaaw</smsContent>"+
"<systemId>admin20151026170721234<systemId>"+
"<systemName>admin</systemName>"+
"<smsId/>"+
"]]>"+*/
"</soapenv:Body>"+

"</soapenv:Envelope>";
String kk = a.invokeSoap(s,"http://10.235.202.170:53088/00.0001.O_OtherBusi_serviceHandler","mixedSendSms");
我的jsp中是以上这么写的

public class MobileCheck1 {
public  static String invokeSoap(String input,String url,String action)throws Exception{
    String output = "";
    URL URL = new URL(url);
    HttpURLConnection con = (HttpURLConnection) URL.openConnection();
    con.setConnectTimeout(120000);
    con.setDoOutput(true);
    con.setRequestProperty("Pragma:", "no-cache");
    con.setRequestProperty("Cache-Control", "no-cache");
    con.setRequestProperty("Content-Length", String.valueOf(input
            .length()));
    con.setRequestProperty("Content-Type", "text/xml;charset=gb2312");
    con.setRequestProperty("SOAPAction", action);
    con.setRequestProperty("Accept-Charset", "gb2312");
    con.setUseCaches(false);
    con.setRequestMethod("POST");System.out.println(")))))))))))))))))))))))))))))))))"+"运行到这里了1");
    con.connect();System.out.println(")))))))))))))))))))))))))))))))))"+"运行到这里了13");

    if (input != null)
    {
        con.getOutputStream().write(input.getBytes());
        con.getOutputStream().flush();
        con.getOutputStream().close();
    }
    try {
        InputStream in = con.getInputStream();
        if (in != null)
        {
            InputStreamReader is = new InputStreamReader(in,"gb2312"); 
            BufferedReader br = new BufferedReader(is);
            String s;
            while ((s = br.readLine()) != null)
            {
                output += s;
            }
            br.close();
            in.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.out.println("调用 con.getInputStream() 是出现异常,异常信息:"+e.getMessage()); 
    }


    System.out.println("))))))))))))))output"+output);
    return output;}
    我的java中是以上这么写的

String s = ""+
"soapenv:Header"+
""+
""+
"00.0001.06"+
"10.0001.Inmspss_smsSend"+
"00.0001.06201511171300550001234567890"+
"20151117130055000"+
""+
"V0.1"+
""+
""+
""+
""+
""+
""+
""+
"/soapenv:Header"+

"<soapenv:Body>"+
/*"<![CDATA["+
"<phoneNums>13311568558</phoneNums>"+
"<sendTime>2015-11-17 10:59:25</sendTime>"+
"<smsContent>aawawawaaw</smsContent>"+
"<systemId>admin20151026170721234<systemId>"+
"<systemName>admin</systemName>"+
"<smsId/>"+
"]]>"+*/
"</soapenv:Body>"+

"</soapenv:Envelope>";
String kk = a.invokeSoap(s,"http://10.235.202.170:53088/00.0001.O_OtherBusi_serviceHandler","mixedSendSms");
这是我在jsp中写的