但系统是这样报错的呀。
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
C:\tomcat\work\localhost_8080%2Fwen\_0002fwww_0002ejspwww_jsp_0.java:68: Ambiguous class: java.beans.Statement and java.sql.Statement
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
^
1 error, 1 warning
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
C:\tomcat\work\localhost_8080%2Fwen\_0002fwww_0002ejspwww_jsp_0.java:68: Ambiguous class: java.beans.Statement and java.sql.Statement
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
^
1 error, 1 warning
解决方案 »
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这句没有错,你再检查一下是不是其他地方有没有错误。
ResultSet.CONCUR_UPDATABLE);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); 显示无法判定Statement属于哪个包里的哪个类....
package com.testing.session;import java.sql.*;public class Conn {
String sDBDriver="com.microsoft.jdbc.sqlserver.SQLServerDriver";
String sConnStr="jdbc:microsoft:sqlserver://T2:1433;DatabaseName=SCMS0708";
Connection conn=null;
ResultSet rs=null;
//注册
public Conn(){
try{
Class.forName(sDBDriver);
}catch(ClassNotFoundException e){
System.out.println("无法建立数据库的连接:" + e.getMessage());
}
}
public void executeUpdate(String sql) throws Exception
{
sql=new String(sql.getBytes("GBK"),"ISO8859_1");
try
{
conn=DriverManager.getConnection(sConnStr,"sa","sa");
Statement stmt=conn.createStatement();
stmt.executeUpdate(sql);
conn.close();
stmt.close();
}catch(SQLException ex){
System.out.println("更新数据操作失败!" + ex.getMessage());
}
}
public ResultSet executeQuery(String sql) throws Exception
{
rs = null;
try
{
sql= new String(sql.getBytes("GBK"),"ISO8859_1");
conn= DriverManager.getConnection(sConnStr,"sa","sa");
Statement stmt=conn.createStatement();
rs=stmt.executeQuery(sql);
}catch(SQLException ex){
System.out.println("执行查询出错!"+ex.getMessage());
}
return rs;
}
public void CloseExecQuery() throws Exception
{
try{
conn.close();
}catch(SQLException er){
System.out.println("关闭错误!" + er.getMessage());
}
}
}