8. JSP操作数据库SQL server

其他 2018-06-01 08:09:12 阅读次数: 0

基于JDBC Driver 4，tomcat7.0，sql server 2005。内容包含对数据库的添加、删除、编辑、查询最基本的操作，代码尽量简短未考虑安全等因素。

Step 1：安装SQL server 2005，并配置其属性。

1、启动sqlserver服务（配置工具-sql server configuration manager-sql server2005服务-右键sql server sqlexpress-启动）注意：启动的是sql server(sqlexpress),并且要将sql server(MSSQOSERVER)停止服务。



2、启用TCP/IP协议（配置工具-sql server configuration manager-网络配置-SQLEXPRESS的协议-TCPIP-已启用）

3、配置端口（配置工具-sql server configuration manager-网络配置-SQLEXPRESS的协议-TCPIP属性-IPALL的动态端口，默认为1433）

4、设置混合验证（sql server management studio-服务器属性-安全性-混合验证）

5、sa授权登陆（sql server management studio-安全性-登录名-sa属性-状态-登陆-启用）

6、sa密码设置（sql server management studio-安全性-登录名-sa属性-常规[强制密码策略不勾选]）

7、重新启动sqlserver服务（配置工具-sql server configuration manager-sql server2005服务-右键sqlexpress-重新启动）

8、测试（sql server management studio:服务器名称localhost或127.0.0.1，sql server用户登录，使用sa用户。）若成功，证明可以通过tcpip协议1433端口sa超级管理员登录。

若发现数据库中的中文都变成了问号，则可以参看http://zhiyongliu.iteye.com/blog/1846449

Step 2：下载JDBC驱动，并解压缩。(附件中也有.)，jdk自己安装吧。

本站下载地址：http://dl.iteye.com/topics/download/cf3a7418-e9c1-3fe5-9cc6-ef46a9397ece

官方下载地址：http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=11774
将驱动jdbc.jar或者jdbc4.jar 拷贝到：站点根目录/WEB-INF/lib 中，注意JDBC驱动的版本以及对JDK版本的要求。

Step 3：新建数据库database，运行下面的sql脚本创建表dataTableName（id, title, content）

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[dataTableName]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[dataTableName](
	[id] [int] IDENTITY(1,1) NOT NULL,
	[title] [nvarchar](max) NULL,
	[content] [nvarchar](max) NULL,
 CONSTRAINT [PK_dataTableName] PRIMARY KEY CLUSTERED 
(
	[id] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END

step4:以下文档为基本操作

代码如下：read.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>read</title>
</head>  
<body> 
<a href="add.jsp">add</a> 
<form method='post' action="search.jsp">
   <input type="text" name="str">
   <input type="submit" value="search">
</form> 
<table border="1" cellspacing="0" cellpadding="0">
  <tr>
    <td>id</td>
    <td>title</td>
    <td>content</td>
    <td>删除</td>
    <td>编辑</td>
  </tr>
<%    
	Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
	String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
	Connection conn = DriverManager.getConnection(connectionUrl);      
	Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	String sql="select * from dataTableName";       
	ResultSet rs=stmt.executeQuery(sql);       
	while(rs.next()) {
%>       
  <tr>
    <td><%=rs.getString(1)%> </td>
    <td><%=rs.getString(2)%></td>
    <td><%=rs.getString(3)%></td>
    <td><a href="del.jsp?id=<%=rs.getString("id")%>">删除</a></td>
    <td><a href="edit.jsp?id=<%=rs.getString("id")%>">编辑</a></td>
  </tr>
<%}
	rs.close();       
	stmt.close();       
	conn.close();         
%> 
</table> 
</body>
</html>
add.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>
<form id="form1" name="form1" method="post" action="save.jsp">
  <label>
  title:
  <input name="title" type="text" id="title" value="这是title" size="25" />
  </label>
  <p>
    content:
      <textarea name="content" cols="50" rows="15" id="content">这是content</textarea>
  </p>
  <p>
    <label>
    <input type="submit" name="Submit" value="提交" />
    </label>
  </p>
</form>
</body>
</html>
 save.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>save</title>
</head>

<body>
<%
	request.setCharacterEncoding("utf-8");
	String title=request.getParameter("title");
	String content=request.getParameter("content");
	
	Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
	String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
	Connection conn = DriverManager.getConnection(connectionUrl);      
	Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	String sql="insert into dataTableName(title,content) values('"+ title +"','"+ content +"')";
	//out.print(sql);        
	stmt.executeUpdate(sql); 
	stmt.close();       
	conn.close(); 
response.sendRedirect("read.jsp");     
%>

</body>
</html>
 del.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>save</title>
</head>

<body>
<%
	request.setCharacterEncoding("utf-8");
	String id=request.getParameter("id");//应该判断一下id的合法性
	Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
	String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
	Connection conn = DriverManager.getConnection(connectionUrl);      
	Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	String sql="delete  from dataTableName where id="+ id +"";
	stmt.executeUpdate(sql); 
	stmt.close();       
	conn.close(); 
	response.sendRedirect("read.jsp");     
%>

</body>
</html>
 edit.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
</head>

<body>
<%
String id=request.getParameter("id");

Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
Connection conn = DriverManager.getConnection(connectionUrl);      
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select * from dataTableName where id="+ id;       
ResultSet rs=stmt.executeQuery(sql);  
rs.next();
%>
<form id="form1" name="form1" method="post" action="update.jsp?id=<%=id%>">
  <label>
  title:
  <input name="title" type="text" id="title" value="<%=rs.getString("title")%>" size="25" />
  </label>
  <p>
    content:
      <textarea name="content" cols="50" rows="15" id="content"><%=rs.getString("content")%></textarea>
  </p>
  <p>
    <label>
    <input type="submit" name="Submit" value="更新" />
    </label>
  </p>
</form>

<%
rs.close();       
stmt.close();       
conn.close();         

%>
</body>
</html>
 
update.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>save</title>
</head>

<body>
<%
	request.setCharacterEncoding("utf-8");
	String id=request.getParameter("id");//应该判断一下id的合法性
	String title=request.getParameter("title");
	String content=request.getParameter("content");
	Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
	String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
	Connection conn = DriverManager.getConnection(connectionUrl);      
	Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	String sql="update dataTableName set title='"+ title +"', content='"+ content +"' where id="+ id;
	stmt.executeUpdate(sql); 
	stmt.close();       
	conn.close(); 
	response.sendRedirect("read.jsp");     
%>

</body>
</html>
 
search.jsp 
<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>search</title>
</head>  
<body> 
<a href="read.jsp">read all information</a>  
<table border="1" cellspacing="0" cellpadding="0">
  <tr>
    <td>id</td>
    <td>title</td>
    <td>content</td>

  </tr>
<%    
	request.setCharacterEncoding("utf-8"); 
	String str=request.getParameter("str"); 	
	Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");   
	String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=dataBase;user=sa;password=sa;";
	Connection conn = DriverManager.getConnection(connectionUrl);      
	Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
	String sql="select * from dataTableName where title like '%"+ str +"%'";       
	ResultSet rs=stmt.executeQuery(sql);       
	while(rs.next()) {
%>       
  <tr>
    <td><%=rs.getString(1)%> </td>
    <td><%=rs.getString(2)%></td>
    <td><%=rs.getString(3)%></td>

  </tr>
<%}
	rs.close();       
	stmt.close();       
	conn.close();         
%> 
</table> 
</body>
</html>
 

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