代码出错了,请教
package com.climatecenter.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
import com.climatecenter.db.*;
public class login extends HttpServlet {
static Random rand = new Random();
static String[] getPar = new String[rand.nextInt()];
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Enumeration parameterNames = request.getParameterNames();
......
while (parameterNames.hasMoreElements()) {
String parameterName = (String) parameterNames.nextElement();
String[] tempPar = request.getParameterValues(parameterName);
for (int i = 0; i < tempPar.length; i++)
if (tempPar[i] != null)
getPar[i] = tempPar[i];
else
System.out.println("空");
......
我是新手,请问我的代码出错在哪里呢?
报错信息如下:
javax.servlet.ServletException: Error instantiating servlet class com.climatecenter.servlet.login
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Unknown Source)