实现用的是jdbc+jsp+servlet,数据库用的是mysql

表就2个字段

实现原理获得text的值后,通过调用servlet查询数据库里是否存在,在通过xml传到前台

OperationName.java

response.setContentType("text/xml;charset=UTF-8")这句很重要,没有他前台获得不到xml,之前做的时候没有加

所以前台获得不到xml

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class OperationName extends HttpServlet
{

/** *//**
* Constructor of the object.
*/
public OperationName()
{
super();
}

/** *//**
* Destruction of the servlet. <br>
*/
public void destroy()
{
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}

/** *//**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/