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在myeclispe中使用JDBC直接访问oracle数据库

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1.新建项目

2.文件名称重构

3.修改编码方式，将pageEncoding修改为GB18030，以支持中文。

4.添加Oracle访问类库，只需要ojdbc5.jar一个就可以了。

\\vmware-host\Shared Folders\F\待处理20130611\小软件\JAVA类库\spring类库\ojdbc5.jar

5.重新部署web程序

6.先将自动启动的tomcat服务器停止。

D:\ZhaohyInstalledSoftware\Apache Software Foundation\Tomcat 6.0\bin

7.在myeclipse中启动服务器

程序启动，使用网址测试：

http://localhost:8090/Spring_2300_Registration_1/register.jsp

8.表脚本。

-- Create table
createtable myuser
(
id numbernotnull,
username
varchar2(20)notnull,
passwordvarchar2(20)notnull
)
;
-- Create/Recreate primary, unique and foreign key constraints
altertable myuser
addconstraint idpkprimarykey
(ID);

9.代码文件：

register.jsp

<%@ pagelanguage="java"import="java.util.*"pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
 <basehref="<%=basePath%>">

 <title>用户注册</title>
 <metahttp-equiv="pragma"content="no-cache">
 <metahttp-equiv="cache-control"content="no-cache">
 <metahttp-equiv="expires"content="0">
 <metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
 <metahttp-equiv="description"content="This
is my page">
 
</head>

<body>
 <formmethod="post"action="registerDeal.jsp">
 用户名:<inputtype="text"name="username"> 
 密码：<inputtype="password"name="password"> 
 确认密码：<inputtype="password"name="password2"> 
 <inputtype="submit"value="提交">
 </form> 
</body>
</html>
registerDeal.jsp

<%@ pagelanguage="java"import="java.util.*,java.sql.*"pageEncoding="GB18030"%>
<%
String path = request.getContextPath
ff04
();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
String username=request.getParameter("username");
String password=request.getParameter("password");
String password2=request.getParameter("password2");
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORCLLEAR","888888","666666");

String sqlQuery="select count(*) from myuser where username = ?";
PreparedStatement psQuery=conn.prepareStatement(sqlQuery);
psQuery.setString(1,username);
ResultSet rs=psQuery.executeQuery();
rs.next();
int count=rs.getInt(1);
if(count >0){

response.sendRedirect("registerFail.jsp");
psQuery.close();
psQuery.close();
return;
}

String sql="insert into myuser (id, username, password) values (?, ?, ?)";
PreparedStatement ps=conn.prepareStatement(sql);
ps.setInt(1,1);
ps.setString(2,username);
ps.setString(3,password);
ps.executeUpdate();
ps.close();
conn.close();

response.sendRedirect("registerSuccess.jsp");
%>

registerFail.jsp

<%@ pagelanguage="java"import="java.util.*"pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
 <basehref="<%=basePath%>">

 <title>My JSP 'index.jsp' starting page</title>
 <metahttp-equiv="pragma"content="no-cache">
 <metahttp-equiv="cache-control"content="no-cache">
 <metahttp-equiv="expires"content="0">
 <metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
 <metahttp-equiv="description"content="This
is my page">
 
</head>

<body>
 注册失败 
</body>
</html>
registerSuccess.jsp

<%@ pagelanguage="java"import="java.util.*"pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPEHTMLPUBLIC"-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
 <basehref="<%=basePath%>">

 <title>My JSP 'index.jsp' starting page</title>
 <metahttp-equiv="pragma"content="no-cache">
 <metahttp-equiv="cache-control"content="no-cache">
 <metahttp-equiv="expires"content="0">
 <metahttp-equiv="keywords"content="keyword1,keyword2,keyword3">
 <metahttp-equiv="description"content="This
is my page">
 
</head>

<body>
 注册成功！ 
</body>
</html>

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标签： myeclipse oracle

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