使用Easyui实现增加

最新推荐文章于 2022-05-08 16:11:23 发布

T275fuyou

最新推荐文章于 2022-05-08 16:11:23 发布

阅读量488

点赞数

CC 4.0 BY-SA版权

文章标签： bootstrap

本文链接：https://blog.youkuaiyun.com/T275fuyou/article/details/124114219

本文档详细介绍了如何使用Easyui在web应用中实现添加功能。从页面搭建开始，通过bootList.jsp增加添加事件，弹出隐藏窗口并跳转到enitBook.jsp进行数据输入。接着，逐步讲解了 Dao层、Service层和Servlet层的实现过程，最后展示了功能完成后的效果。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

目录

bootList.jsp

enitBook.jsp

二、Dao层

二、Servlce层

三、Servlet层

四、效果展示

一、页面搭建？

找到上次写的bookList.jsp页面给增加添加点击事件，并给弹出窗口定义个容器，

默认隐藏，点击在显示，在跳转增加书籍界面enitBook.jsp

bootList.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<%@include file="../../common/head.jsp" %>
<script>
	$(function(){
		$('#dg').datagrid({    
		    url:ctx+'/BookServlet',    
		    toolbar: '#tb',
		    pagination:true, //显示底部分页工具栏
		    columns:[[    
		    	//表格的结构，需要与实体类保持一致
		        {field:'id',title:'ID',width:100,align:'center'},    
		        {field:'bookname',title:'书本名称',width:100,align:'center'},    
		        {field:'price',title:'价格',width:100,align:'center'},
		        {field:'booktype',title:'类型',width:100,align:'center'} 
		    ]]    
		});  
		
		//给查询添加点击事件
		$("#qrybtn").click(function(){
			qry();
		});
		
		function qry(){
			//重载行
			$('#dg').datagrid("reload",{
				//拿到以前的值给文本框赋值
				bookName:$("#bookName").val()
			});
		};
		
		//增加书本
		$("#addBook").click(function(){
			$("#editDlalog").dialog({    
			    title: '编辑书本信息',    
			    width: 300,    
			    height: 250,    
			    closed: false,    
			    cache: false,    
			    href: 'editBook.jsp',    
			    modal: true,
			    buttons:[{
					text:'保存',
					iconCls:'icon-save',
					handler:function(){
						$.ajax({
							url:ctx+"/bookAddServlet",
							type:'post',
							data: $("#bookForm").serialize(),
							dateType:'json',
							success:function(resp){
								if(resp.success){
									$.messager.alert('提示', '操作成功');
									$("#editDlalog").dialog("close");
									qry();
								}else{
									$.messager.alert('警告', '操作失败');
								}
							}
						});
					}
				},{
					text:'关闭',
					iconCls:'icon-cancel',
					handler:function(){
						$("#editDlalog").dialog("close");
					}
				}]
			});   
		});
	 
		
	});
</script>
</head>
<body>
<form style="margin-top:20px;">
	<label for="name">书籍名称:</label>  
	<input id="bookName" class="easyui-textbox" data-options="" style="width:300px;">
	<a id="qrybtn" href="#" class="easyui-linkbutton" data-options="iconCls:'icon-search'">查询</a>  
</form>
 
<div style="margin-top:10px;">
	<table id="dg"></table>  
</div>
 
<div id="tb" style="text-align:right;">
	<a href="#" id="addBook" class="easyui-linkbutton" data-options="iconCls:'icon-add',plain:true"></a>
	<a href="#" class="easyui-linkbutton" data-options="iconCls:'icon-edit',plain:true"></a>
	<a href="#" class="easyui-linkbutton" data-options="iconCls:'icon-remove',plain:true"></a>
</div>
 
<!-- 给弹出窗口定义一个容器，并默认为隐藏，在点击后再显示 -->
<div id="editDlalog" style="display:none;"></div>  
</body>
</html>

enitBook.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<form id="bookForm">
		<div style="margin-top: 10px;margin-left:10px;">   
	        <label for="name">书本名称:</label>   
	        <input class="easyui-textbox" type="text" name="bookname" data-options="required:true" />   
	    </div>   
	    <div style="margin-top: 10px;margin-left:10px;">   
	        <label for="price">书本价格:</label>   
	       <input class="easyui-textbox" type="text" name="price" data-options="required:true" /> 
	    </div>
	  <div style="margin-top: 10px;margin-left:10px;">    
	        <label for="booktype">书本类型:</label>   
	        <input class="easyui-textbox" type="text" name="booktype" data-options="required:true" /> 
	    </div>  
</form>

二、Dao层

public void addBook(Book book) {
		Connection con = null;
		PreparedStatement ps = null;
		String sql = "insert into t_book value (id,bookname,price, booktype) "
				+ "select max(id)+1,'"
				+ book.getBookname()+"','" 
				+ book.getPrice()+"','" 
				+ book.getBooktype()+"' from t_book";
		try {
			con = DBHelper.getCon();
			ps = con.prepareStatement(sql);
			ps.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			DBHelper.myClose(con, ps, null);
		}
	}

二、Servlce层

 @Override
	public void addBook(Book book) {
		// TODO Auto-generated method stub
		bd.addBook(book);
	}

三、Servlet层

package com.zking.euidemo.servlet;
 
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.util.HashMap;
import java.util.Map;
 
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import com.alibaba.fastjson.JSON;
import com.zking.euidemo.entity.Book;
import com.zking.euidemo.service.BookService;
import com.zking.euidemo.service.IBookService;
@WebServlet("/bookAddServlet")
public class BookAddServlet extends HttpServlet{
		
	private IBookService service = new BookService();
	
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doPost(req, resp);
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		//设置字符编码方式
		req.setCharacterEncoding("utf-8");
		resp.setContentType("application/json; charset=utf-8");
		
		Map<String,Object> rv = new HashMap<>();
		try {
			//获取表单提交过来的值
			String bookname = req.getParameter("bookname");
			String price = req.getParameter("price");
			String booktype = req.getParameter("booktype");
			
			Book book = new Book();
			book.setBookname(bookname);
			book.setPrice(new BigDecimal(price));
			book.setBooktype(booktype);
			
			service.addBook(book);
			rv.put("success", true);
		} catch (Exception e) {
			e.printStackTrace();
			rv.put("success", false);
		}
		
		PrintWriter out = resp.getWriter();
		String json =JSON.toJSONString(rv);
		out.write(json);
		out.flush();
		out.close();
	}
}