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HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NumberFormatException: null
java.lang.Integer.parseInt(Unknown Source)
java.lang.Integer.parseInt(Unknown Source)
station.servlet.UserReg.doPost(UserReg.java:23)
station.servlet.UserReg.doGet(UserReg.java:35)
javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.
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package station.servlet;
import java.util.*;
import java.io.*;
import java.sql.*;
import javax.servlet.*;
import javax.servlet.http.*;
import station.bean.MyDb;
public class UserReg extends HttpServlet{
private String user_acct;
private String user_pwd;
private String user_sex;
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