import java.sql.*; import javax.sql.*; import java.io.*;public class UserBean { private Dbcon dbcon ;public UserBean () throws Exception{ dbcon = new Dbcon(); } public void addUser(User user) throws SQLException{ String sql = "insert into Tuser(uname,upassword,uage) values('"+user.getName()+"','"+user.getPassword()+"',"+user.getAge()+")"; dbcon.dbexe(sql); } } //OK
to:silverend大哥: 是在同一個目錄下的! to:fengfyang大哥: 我按照你的做法,還是不行的! 提示: UserBean.java:12: cannot access Dbcon bad class file: .\Dbcon.class class file contains wrong class: com.stru.Dbcon Please remove or make sure it appears in the correct subdirectory of the classpath. private Dbcon dbcon ; ^ 1 error 請救救我!
我的執行方法是: D:\Tomcat 5.0\webapps\mytest\WEB-INF\classes\com\stru>javac UserBean.java 提示: UserBean.java:12: cannot access Dbcon bad class file: .\Dbcon.class class file contains wrong class: com.stru.Dbcon Please remove or make sure it appears in the correct subdirectory of the classpath. private Dbcon dbcon ; ^ 1 error
import javax.sql.*;
import java.io.*;public class UserBean {
private Dbcon dbcon ;public UserBean () throws Exception{
dbcon = new Dbcon();
}
public void addUser(User user) throws SQLException{
String sql = "insert into Tuser(uname,upassword,uage) values('"+user.getName()+"','"+user.getPassword()+"',"+user.getAge()+")";
dbcon.dbexe(sql);
}
}
//OK
是在同一個目錄下的!
to:fengfyang大哥:
我按照你的做法,還是不行的!
提示:
UserBean.java:12: cannot access Dbcon
bad class file: .\Dbcon.class
class file contains wrong class: com.stru.Dbcon
Please remove or make sure it appears in the correct subdirectory of the classpath.
private Dbcon dbcon ;
^
1 error
請救救我!
D:\Tomcat 5.0\webapps\mytest\WEB-INF\classes\com\stru>javac UserBean.java
提示:
UserBean.java:12: cannot access Dbcon
bad class file: .\Dbcon.class
class file contains wrong class: com.stru.Dbcon
Please remove or make sure it appears in the correct subdirectory of the classpath.
private Dbcon dbcon ;
^
1 error
java文件沒有寫錯!
我執行路徑錯誤!
應該是D:\Tomcat 5.0\webapps\mytest\WEB-INF\classes>javac UserBean.java
謝謝!