?? runquerytag.java
字號:
import javax.servlet.jsp.*;
import javax.servlet.jsp.tagext.*;
import java.io.*;
import java.sql.*;
import java.util.*;
public class RunQueryTag extends BodyTagSupport
{
public int doStartTag() throws JspException
{
System.out.println("RunQueryTag.doStartTag()......");
return EVAL_PAGE;
}
public int doEndTag() throws JspException
{
String sql = bodyContent.getString();
if( sql == null){
throw new JspException("No SQL statement found.");
}
sql.trim();
if(sql.equals("")){
throw new JspException("Empty SQL statement.");
}
ConnectTag ct = (ConnectTag)findAncestorWithClass(this,ConnectTag.class);
if( ct == null){
throw new JspException("No ConnectTag Object error.");
}
try{
ct.runQuery( sql );
}catch(SQLException e){
throw new JspException( e.getMessage() );
}
System.out.println("RunQueryTag.doEndTag()......");
return EVAL_PAGE;
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -