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分享java.lang.NoSuchMethodError！！！
我写了一个javabean,用JSP调用，但老出java.lang.NoSuchMethodError
错误，我检查了调用时的方法名是一致地。CLASS也更新了。
<html>
<body>
<%@page language="java" import="java.sql.*"%>
<jsp:useBean id="sqlbean" scope="session" class="my.Employee"/>
<%!String sql;%>
<%
sqlbean.Query();
%>
</body>
</html>
public class Employee{
public void Query()
{
try{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection ("jdbc:oracle:thin:@192.16.0.115:1521:fu",
"code", "coding");
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("select * from address");
while (rset.next())
System.out.println("address is " + rset.getInt(1));
}
catch(SQLException ex)
{
System.err.println("Employee.executeQuery:"+ex.getMessage());
}
}
}
错误，我检查了调用时的方法名是一致地。CLASS也更新了。
<html>
<body>
<%@page language="java" import="java.sql.*"%>
<jsp:useBean id="sqlbean" scope="session" class="my.Employee"/>
<%!String sql;%>
<%
sqlbean.Query();
%>
</body>
</html>
public class Employee{
public void Query()
{
try{
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Connection conn =
DriverManager.getConnection ("jdbc:oracle:thin:@192.16.0.115:1521:fu",
"code", "coding");
Statement stmt = conn.createStatement ();
ResultSet rset = stmt.executeQuery ("select * from address");
while (rset.next())
System.out.println("address is " + rset.getInt(1));
}
catch(SQLException ex)
{
System.err.println("Employee.executeQuery:"+ex.getMessage());
}
}
}
...全文
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