layui表格数据与后台数据连接，javaweb
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2022-06-19 13:02:24
仅上传代码部分以下图示部分可视化界面admingonggao.jsp<%@ page contentType="text/html;charset=UTF-8" language="java" %><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%><%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>....
仅上传代码部分
以下图示部分可视化界面
admingonggao.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<%@ page isELIgnored="false" %>
<%@ taglib uri="http://java.fckeditor.net" prefix="FCK"%>
<!DOCTYPE html>
<html class="x-admin-sm">
<head>
<meta charset="UTF-8">
<title>公告管理</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width,user-scalable=yes, minimum-scale=0.4, initial-scale=0.8,target-densitydpi=low-dpi" />
<link rel="stylesheet" href="css/font1.css">
<link rel="stylesheet" href="css/admin1.css">
<script src="layui/layui.js" charset="utf-8"></script>
<script type="text/javascript" src="js/admin1.js"></script>
<script src="https://cdn.staticfile.org/html5shiv/r29/html5.min.js"></script>
<script src="https://cdn.staticfile.org/respond.js/1.4.2/respond.min.js"></script>
</head>
<body>
<div class="layui-fluid">
<div class="layui-row layui-col-space15">
<div class="layui-col-md12">
<div class="layui-card">
<div class="layui-card-header">
<button class="layui-btn" onclick="xadmin.open('添加公告','gonggao-add.jsp',600,400)"><i class="layui-icon"></i>添加</button>
</div>
<div class="layui-card-body ">
<table class="layui-table layui-form">
<thead>
<tr>
<th>ID</th>
<th>标题</th>
<th>内容</th>
<th>时间</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${requestScope.gonggaoList}" var="gonggao">
<tr>
<td>${gonggao.id}</td>
<td>${gonggao.title}</td>
<td>${gonggao.content}</td>
<td>${gonggao.shijian}</td>
<td class="td-manage">
<a title="修改" href="admingonggaoupdateServlet?id=${gonggao.id}">
<i class="layui-icon"></i>
</a>
<a title="删除" href="admingonggaodeleteServlet?id=${gonggao.id}">
<i class="layui-icon"></i>
</a>
</td>
</tr>
</c:forEach>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
gonggaodao.java
package com.dao;
import com.orm.Tgonggao;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
public class gonggaodao {
Connection conn = null;
PreparedStatement pstmt = null;
ResultSet res = null;
private Connection getConn() {
try {
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/db_wljx?&useUnicode=true&characterEncoding=UTF-8", "root", "123456");
} catch (SQLException | ClassNotFoundException e) {
// TODO: handle exception
e.printStackTrace();
}
return conn;
}
public List findgonggao () throws SQLException {
List gonggaoList = new ArrayList();
conn = getConn();
String sql = "select * from t_gonggao ";
pstmt = conn.prepareStatement(sql);
try{
res = pstmt.executeQuery();
while (res.next()) {
Tgonggao tgonggao = new Tgonggao();
tgonggao.setId(res.getString("id"));
tgonggao.setTitle(res.getString("title"));
tgonggao.setContent(res.getString("content"));
tgonggao.setShijian(res.getString("shijian"));
gonggaoList.add(tgonggao);
}
} catch (SQLException e) {
e.printStackTrace();
}
res.close();
pstmt.close();
return gonggaoList;
}
public Tgonggao findgonggaobyid (String id) throws SQLException {
Tgonggao tgonggao = new Tgonggao();
try {
conn = getConn();
String sql = "select * from t_gonggao where id=?";
pstmt = conn.prepareStatement(sql);
pstmt.setString(1, id);
res = pstmt.executeQuery();
while (res.next()) {
tgonggao.setId(res.getString("id"));
tgonggao.setTitle(res.getString("title"));
tgonggao.setContent(res.getString("content"));
tgonggao.setShijian(res.getString("shijian"));
}
} catch (SQLException e) {
// TODO: handle exception
e.printStackTrace();
}
return tgonggao;
}
public Tgonggao updategonggaobyid (String id,String title,String content,String shijian) throws SQLException {
Tgonggao tgonggao = new Tgonggao();
try {
conn = getConn();
String sql = "UPDATE t_gonggao set title = ? , content = ?, shijian = ? where id=?";
pstmt = conn.prepareStatement(sql);
pstmt.setString(1, title);
pstmt.setString(2, content);
pstmt.setString(3, shijian);
pstmt.setString(4, id);
pstmt.executeUpdate();
} catch (SQLException e) {
// TODO: handle exception
e.printStackTrace();
}
return tgonggao;
}
public void deletegonggaobyid (String id) throws SQLException {
Tgonggao tgonggao = new Tgonggao();
try {
conn = getConn();
String sql = "delete from t_gonggao where id=?";
pstmt = conn.prepareStatement(sql);
pstmt.setString(1, id);
pstmt.execute();
} catch (SQLException e) {
// TODO: handle exception
e.printStackTrace();
}
}
public Tgonggao addgonggao (String id,String title,String content,String shijian) throws SQLException {
Tgonggao tgonggao = new Tgonggao();
try {
conn = getConn();
String sql = "insert into t_gonggao value(?,?,?,?)";
pstmt = conn.prepareStatement(sql);
pstmt.setString(1, id);
pstmt.setString(2, title);
pstmt.setString(3, content);
pstmt.setString(4, shijian);
pstmt.execute();
} catch (SQLException e) {
// TODO: handle exception
e.printStackTrace();
}
return tgonggao;
}
}
Tgonggao.java
package com.orm;
public class Tgonggao {
private String id;
private String title;
private String content;
private String shijian;
@Override
public String toString() {
return "Tgonggao{" +
"id='" + id + '\'' +
", title='" + title + '\'' +
", content='" + content + '\'' +
", shijian='" + shijian + '\'' +
'}';
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getShijian() {
return shijian;
}
public void setShijian(String shijian) {
this.shijian = shijian;
}
}
其余servlet代码：https://download.csdn.net/download/katherinejing77/12655631
本文地址：https://blog.csdn.net/katherinejing77/article/details/107542749