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  • JSP+Servlet+JavaBean+JDBC

    tables.jsp
    1. <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    2. <%@ page import="java.sql.DriverManager" %>
    3. <%@ page import="java.sql.PreparedStatement" %>
    4. <%@ page import="java.sql.ResultSet" %>
    5. <%@ page import="java.sql.SQLException" %>
    6. <%@ page import="java.sql.Connection" %>
    7. <%@ page import="java.sql.Statement" %>
    8. <%@ page import="model.User" %>
    9. <%@ page import="javax.servlet.http.HttpServletRequest" %>
    10. <!DOCTYPE html>
    11. <html lang="en">
    12. <%@ include file="menu.jsp"  %>
    13. 	<body>
    14. 		
    15. 		<div id="content">
    16. 			<div id="content-header">
    17. 				<h1>Tables</h1>
    18. 				<div class="btn-group">
    19. 					<a class="btn btn-large tip-bottom" title="Manage Files"><i class="icon-file"></i></a>
    20. 					<a class="btn btn-large tip-bottom" title="Manage Users"><i class="icon-user"></i></a>
    21. 					<a class="btn btn-large tip-bottom" title="Manage Comments"><i class="icon-comment"></i><span class="label label-important">5</span></a>
    22. 					<a class="btn btn-large tip-bottom" title="Manage Orders"><i class="icon-shopping-cart"></i></a>
    23. 				</div>
    24. 			</div>
    25. 			<div id="breadcrumb">
    26. 				<a href="#" title="Go to Home" class="tip-bottom"><i class="icon-home"></i> Home</a>
    27. 				<a href="#" class="current">Tables</a>
    28. 			</div>
    29. 			<div class="container-fluid">
    30. 				<div class="row-fluid">
    31. 					<div class="span12">																
    33. 						<div class="widget-box">
    34. 							<div class="widget-title">
    35. 							
    36. 								<h5>Dynamic table</h5>
    37. 							</div>
    38. 							<div class="widget-content nopadding">
    39. 								<table class="table table-bordered data-table">
    40. 									<thead>
    41. 									<tr>
    42. 									<th>ID</th>
    43. 									<th>USER</th>
    44. 									<th>NAME</th>
    45. 									<th>TEL</th>
    46. 									</tr>
    47. 									</thead>
    48. 									<tbody>
    49. 										<%
    50. 											List<User> list = new ArrayList<User>();
    51. 											list = (List<User>)request.getAttribute("list");
    52. 											for (User user : list){
    53. 										%>
    54. 										<tr>
    55. 											<td><%=user.getId() %></td>
    56. 											<td><%=user.getAccount() %></td>
    57. 											<td><%=user.getUsername() %></td>
    58. 											<td><%=user.getTel() %></td>
    59. 										</tr>
    60. 										<%} %>
    61. 									</tbody>
    62. 									</table>  
    63. 							</div>
    64. 						</div>
    65. 					</div>
    66. 				</div>
    67. 				
    68. 				<div class="row-fluid">
    69. 					<div id="footer" class="span12">
    70. 						2012 &copy; UniAdmin.</div>
    71. 				</div>
    72. 			</div>
    73. 		</div>
    74. 		
    75. 		
    76.             
    77.             <script src="js/jquery.min.js"></script>
    78.             <script src="js/jquery.ui.custom.js"></script>
    79.             <script src="js/bootstrap.min.js"></script>
    80.             <script src="js/jquery.uniform.js"></script>
    81.             <script src="js/select2.min.js"></script>
    82.             <script src="js/jquery.dataTables.min.js"></script>
    83.             <script src="js/unicorn.js"></script>
    84.             <script src="js/unicorn.tables.js"></script>
    85. 	</body>
    86. </html>

    web.xml
    1. <?xml version="1.0" encoding="UTF-8"?>
    2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
    3.   <display-name>web_project</display-name>
    4.   <welcome-file-list>
    5.     <welcome-file>welcome.jsp</welcome-file>
    6.   </welcome-file-list>
    7.     <servlet>  
    8.     <servlet-name>FindServlet</servlet-name>  
    9.     <servlet-class>servlet.FindServlet</servlet-class>  
    10.   </servlet>  
    11.   <servlet-mapping>  
    12.     <servlet-name>FindServlet</servlet-name>  
    13.     <url-pattern>/FindServlet</url-pattern>  
    14.   </servlet-mapping>  
    15. </web-app>


    FindSerlvet.java
    1. package servlet;
    3. import java.io.IOException;
    4. import java.sql.Connection;
    5. import java.sql.DriverManager;
    6. import java.sql.PreparedStatement;
    7. import java.sql.ResultSet;
    8. import java.sql.SQLException;
    9. import java.util.ArrayList;
    10. import java.util.List;
    12. import javax.servlet.ServletException;
    13. import javax.servlet.annotation.WebServlet;
    14. import javax.servlet.http.HttpServlet;
    15. import javax.servlet.http.HttpServletRequest;
    16. import javax.servlet.http.HttpServletResponse;
    18. import model.User;
    20. public class FindServlet extends HttpServlet {
    21. 	private static final long serialVersionUID = 1L;
    22.    
    23.     public FindServlet() {
    24.         super();
    25.     }
    27. 	
    28. 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    29. 		Connection conn = null;
    30. 		PreparedStatement ps = null;
    31. 		ResultSet resultSet = null;
    32. 		String sql;
    33. 		// MySQL的JDBC URL编写方式：jdbc:mysql://主机名称：连接端口/数据库的名称?参数=值
    34. 		// 避免中文乱码要指定useUnicode和characterEncoding
    35. 		// 执行数据库操作之前要在数据库管理系统上创建一个数据库，名字自己定，
    36. 		// 下面语句之前就要先创建javademo数据库
    37. 		String url = "jdbc:mysql://localhost:3306/s61?"
    38. 		        + "user=root&password=&useUnicode=true&characterEncoding=UTF8";
    39. 		try {
    40. 		    // 之所以要使用下面这条语句，是因为要使用MySQL的驱动，所以我们要把它驱动起来，
    41. 		    // 可以通过Class.forName把它加载进去，也可以通过初始化来驱动起来，下面三种形式都可以
    42. 		    Class.forName("com.mysql.jdbc.Driver");// 动态加载mysql驱动
    43. 		   
    44. 		    System.out.println("成功加载MySQL驱动程序");
    45. 		    // 一个Connection代表一个数据库连接
    46. 		    conn = DriverManager.getConnection(url);
    47. 		    // Statement里面带有很多方法，比如executeUpdate可以实现插入，更新和删除等
    48. 	        sql = "select a.F01 as id,a.F02 as user,b.F02 as name,a.F04 as tel from s61.t6110 a,s61.t6141 b where a.F01=b.F01 ";
    49. 	        ps = conn.prepareStatement(sql);
    50. 	        resultSet = ps.executeQuery();
    51. 	        Integer id = null;
    52. 	        String account = null;
    53. 	        String name = null;
    54. 	        String tel = null;
    55. 	        
    56. 	        List<User> list = new ArrayList<User>();
    57. 	        
    58. 	        while (resultSet.next()){
    59. 	        	User myuser = new User();
    60. 	        	
    61. 	            id = resultSet.getInt(1);
    62. 	            myuser.setId(id);
    63. 	            
    64. 	            account = resultSet.getString(2);
    65. 	            myuser.setAccount(account);
    66. 	            
    67. 				name = resultSet.getString(3);
    68. 				myuser.setUsername(name);
    69. 				
    70. 				tel = resultSet.getString(4);	
    71. 				myuser.setTel(tel);
    72. 				
    73. 				list.add(myuser);
    74. 	        }
    75. 	        
    76. 	        request.setAttribute("list", list);
    77. 		        
    78. 		} catch (SQLException e) {
    79. 		    System.out.println("MySQL操作错误");
    80. 		    e.printStackTrace();
    81. 		} catch (Exception e) {
    82. 		    e.printStackTrace();
    83. 		} finally {
    84. 		    try {
    85. 		    	resultSet.close();
    86. 		    	ps.close();
    87. 				conn.close();
    88. 			} catch (SQLException e) {
    89. 				e.printStackTrace();
    90. 			}
    91. 		}
    92. 		
    93. 		request.getRequestDispatcher("tables.jsp")  
    94.         .forward(request, response); 
    95. 	}
    97. 	
    98. 	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    99. 		doGet(request, response);
    100. 	}
    102. }


    User.java
    1. package model;
    3. public class User {
    4. 	private Integer id;
    5. 	private String account;
    6. 	private String username;
    7. 	private String tel;
    8. 	
    9. 	public void setId(Integer id){
    10. 		this.id = id;
    11. 	}
    12. 	
    13. 	public Integer getId(){
    14. 		return id;
    15. 	}
    16. 	
    17. 	public void setAccount(String account){
    18. 		this.account = account;
    19. 	}
    20. 	
    21. 	public String getAccount(){
    22. 		return account;
    23. 	}
    24. 	
    25. 	public void setUsername(String username){
    26. 		this.username = username;
    27. 	}
    28. 	
    29. 	public String getUsername(){
    30. 		return username;
    31. 	}
    32. 	
    33. 	public void setTel(String tel){
    34. 		this.tel = tel;
    35. 	}
    36. 	
    37. 	public String getTel(){
    38. 		return tel;
    39. 	}
    40. }
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  • 原文地址：https://www.cnblogs.com/tangbinghaochi/p/6293150.html
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