HTTP Status 500 - Unable to compile class for JSP:
type Exception report
message Unable to compile class for JSP:
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 19 in the jsp file: /Doregister.jsp
The method setAge(Integer) in the type User is not applicable for the arguments (String)
16: User u=new User();
17: u.setName(name);
18: u.setPass(pass);
19: u.setAge(age);
20: UserDao udao=new UserDao();
21: //呼叫udao的方法實作插入功能
22: int x=udao.insert(u);
Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:460)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:321)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.53 logs.
Doregister.jsp :
<%@page import="com.tao.entity.User"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<% //獲取姓名密碼和年齡
String name=request.getParameter("username");
String pass=request.getParameter("password");
String age=request.getParameter("age");
User u=new User();
u.setName(name);
u.setPass(pass);
u.setAge(age);
UserDao udao=new UserDao();
//呼叫udao的方法實作插入功能
int x=udao.insert(u);
if(x>=1){
//轉發，如果>1，跳轉到success2.jsp頁面
request.getRequestDispatcher("/Success.jsp").forward(request,response);
}
%>
</body>
</html>
BaseDao:
package com.tao.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class BaseDao {
protected Connection conn = null;
protected Statement stmt = null;
protected ResultSet rs = null;
protected String url = "jdbc:mysql://localhost:3306/student3?characterEncoding=utf-8";
protected String name = "root";
protected String password = "123456";
protected PreparedStatement pstmt=null;
public void connect(){
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection(url,"root","123456");
stmt = conn.createStatement();
} catch(Exception e) {
e.printStackTrace();
}
}
public void closeAll(){
try {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
if(pstmt!=null){
pstmt.close();
}
}catch(Exception e) {
}
}
}
UserDao.java
package com.tao.dao;
import com.tao.entity.User;
public class UserDao extends BaseDao{
public User dologin(String name,String pass){
User u=null;
try {
super.connect();
String sql="select * from user where name=? and pass=?";
pstmt=conn.prepareStatement(sql);
pstmt.setString(1,name);
pstmt.setString(2,pass);
rs=pstmt.executeQuery();
while(rs.next()){
u=new User();
u.setId(rs.getInt(1));
u.setName(rs.getString(2));
u.setPass(rs.getString(3));
u.setAge(rs.getString(4));
}
} catch (Exception e) {
e.printStackTrace();
}finally{
super.closeAll();
}
return u;
}
public int insert(User u){
int row=0;
try {
super.connect();
String sql="insert into user(name,pass,age) values(?,?,?)";
pstmt=conn.prepareStatement(sql);
pstmt.setString(1, u.getName());
pstmt.setString(2,u.getPass());
pstmt.setString(3, u.getAge());
row=pstmt.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
}finally{
super.closeAll();
}
return row;
}
}
User.java呵Register.jsp就不發出來了太多了 求大佬幫我找找哪里出問題了 他一直顯示Unable to compile class for JSP:
uj5u.com熱心網友回復：
setAge() 需要傳人什么型別的引數？uj5u.com熱心網友回復：
setAge（）傳輸String型別的引數轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/72950.html
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