1、Servlet原始碼
實現資料庫查詢，並將資料封裝到javabean中，將封裝的資料新增到request作用域中，然後用JSTL標籤遍歷request作用域，實現資料查詢操作。
注：javabean中封裝的資料屬性名要和資料庫表中的列明相同，不然查詢為空。

import java.io.IOException;
import java.util.List;

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

import dataBean.ProductInfoBean;
import dataDAO.SearchData;

public class SearchInfoServlet extends HttpServlet {
/**
 * 以批號、id號、是否合格為條件，對資料庫進行查詢，將結果集封裝到List<ProductInfoBean>,通過session儲存查詢返回的資料，頁面轉發到查詢頁。
 * 
 * */
    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws
 
 ServletException, IOException {
//獲取jsp頁面提交的搜尋引數
            String searchbatch=new String(request.getParameter("searchBatch").getBytes("iso-8859-1"),"utf-8");
            String searchid=new String(request.getParameter("searchId").getBytes("iso-8859-1"),"utf-8");
            String testresult=new String(request.getParameter("testResult"
 
).getBytes("iso-8859-1"),"utf-8");
         try{
             ProductInfoBean probean=new ProductInfoBean();
             probean.setBatch_Number(searchbatch);
             probean.setTestid(searchid);
             probean.setResult(testresult);
             List<ProductInfoBean> list= SearchData.SearchBatchNumber(probean);
             request.setAttribute("list", list);
             request.getRequestDispatcher("/Search.jsp").forward(request, response);
        }catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }

    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
            doGet(request,response);
    }

}

2、JSP頁面程式碼（JSTL標籤）