The value for the useBean class attribute Register is invalid,该怎么解决
日期：2014-05-17 浏览次数：20616 次
The value for the useBean class attribute Register is invalid
Register.java:
package book;
import java.sql.*;
public class Register
{ String logname,
realname,
password,
email,
phone,
address;
String message;
Connection con;
Statement sql;
ResultSet rs;
Register()
{ // 加载桥接器：
try{Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch(ClassNotFoundException e){}
}
// 设置属性值、获取属性值的方法：
public void setLogname(String name)
{ logname=name;
}
public String getLogname()
{return logname;
}
public void setRealname(String name)
{ realname=name;
}
public String getRealname()
{return realname;
}
public void setPassword(String pw)
{ password=pw;
}
public String getPassword()
{return password;
}
public void setEmail(String em)
{ email=em;
}
public String getEmail()
{return email;
}
public void setPhone(String ph)
{ phone=ph;
}
public String getPhone()
{return phone;
}
public void setAddress(String ad)
{ address=ad;
}
public String getAddress()
{return address;
}
public String getMessage()
{return message;
}
// 添加记录到数据库的user 表：
public void addItem()
{try{
con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:shop", "scott", "aaa");
sql=con.createStatement();
String s=
"'"+logname+"'"+","+"'"+realname+"'"+","+"'"+password+"'"+","+"'"+
email+"'"+","+"'"+phone+"'"+","+"'"+address+"'";
String condition="INSERT INTO users VALUES"+"("+s+")";
sql.executeUpdate(condition);
message=" 注册成功了";
con.close();
}
catch(SQLException e)
{message=" 你还没有注册，或该用户已经存在，请你更换一个名字";
}
}
}
useRegister.jsp:
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="book.Register" %>
<%! //处理字符串的方法：
public String codeString(String s)
{ String str=s;
try{byte b[]=str.getBytes("ISO-8859-1");
str=new String(b);
return str;
}
catch(Exception e)
{ return str;
}
}
%>
<HTML>
<BODY ><Font size=5>
<%@ include file="head.jsp" %>
<Font size=5>
<%String str=response.encodeURL("userRegister.jsp");
%>
<P>输入您的信息，带*号项必须填写：
<FORM action="<%=str%>" Method="post">
<BR>登录名称<Input type=text name="logname">*
554
<BR>真实姓名<Input type=text name="realname">*
<BR>设置密码<Input type=password name="password">*
<BR>电子邮件<Input type=text name="email">*
<BR>联系电话<Input type=text name="phone">*
<BR>通信地址<Input type=text name="address">*
<BR><Input type=submit name="g" value="提交">
</Form>
<jsp:useBean id="login" class="book.Register" scope="request" >
</jsp:useBean>
<% // 提交信息后，进行注册操作：
String logname="",realname="",password="",email="",phone="",address="";
if(!(session.isNew()))
{ logname=request.getParameter("logname");
if
Register.java:
package book;
import java.sql.*;
public class Register
{ String logname,
realname,
password,
email,
phone,
address;
String message;
Connection con;
Statement sql;
ResultSet rs;
Register()
{ // 加载桥接器：
try{Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch(ClassNotFoundException e){}
}
// 设置属性值、获取属性值的方法：
public void setLogname(String name)
{ logname=name;
}
public String getLogname()
{return logname;
}
public void setRealname(String name)
{ realname=name;
}
public String getRealname()
{return realname;
}
public void setPassword(String pw)
{ password=pw;
}
public String getPassword()
{return password;
}
public void setEmail(String em)
{ email=em;
}
public String getEmail()
{return email;
}
public void setPhone(String ph)
{ phone=ph;
}
public String getPhone()
{return phone;
}
public void setAddress(String ad)
{ address=ad;
}
public String getAddress()
{return address;
}
public String getMessage()
{return message;
}
// 添加记录到数据库的user 表：
public void addItem()
{try{
con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:shop", "scott", "aaa");
sql=con.createStatement();
String s=
"'"+logname+"'"+","+"'"+realname+"'"+","+"'"+password+"'"+","+"'"+
email+"'"+","+"'"+phone+"'"+","+"'"+address+"'";
String condition="INSERT INTO users VALUES"+"("+s+")";
sql.executeUpdate(condition);
message=" 注册成功了";
con.close();
}
catch(SQLException e)
{message=" 你还没有注册，或该用户已经存在，请你更换一个名字";
}
}
}
useRegister.jsp:
<%@ page contentType="text/html;charset=GB2312" %>
<%@ page import="book.Register" %>
<%! //处理字符串的方法：
public String codeString(String s)
{ String str=s;
try{byte b[]=str.getBytes("ISO-8859-1");
str=new String(b);
return str;
}
catch(Exception e)
{ return str;
}
}
%>
<HTML>
<BODY ><Font size=5>
<%@ include file="head.jsp" %>
<Font size=5>
<%String str=response.encodeURL("userRegister.jsp");
%>
<P>输入您的信息，带*号项必须填写：
<FORM action="<%=str%>" Method="post">
<BR>登录名称<Input type=text name="logname">*
554
<BR>真实姓名<Input type=text name="realname">*
<BR>设置密码<Input type=password name="password">*
<BR>电子邮件<Input type=text name="email">*
<BR>联系电话<Input type=text name="phone">*
<BR>通信地址<Input type=text name="address">*
<BR><Input type=submit name="g" value="提交">
</Form>
<jsp:useBean id="login" class="book.Register" scope="request" >
</jsp:useBean>
<% // 提交信息后，进行注册操作：
String logname="",realname="",password="",email="",phone="",address="";
if(!(session.isNew()))
{ logname=request.getParameter("logname");
if
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