jsp 相同代码有时正常有时错误

[列星]

<%@ page c%>
<%@ page import="java.util.*"%>
代码很简单
<%@ page import="java.sql.*"%>
<%
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/test","root","12345678");
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
String sql = "select * from test";
ResultSet rs = stmt.executeQuery(sql);
while(rs.next()){ %>
您的第一个字段内容为:<%=rs.getString(1)%>
您的第二个字段内容为:<%=rs.getString(2)%><br>
<%}%>
<%out.print("数据库操作成功,恭喜您");%>
<% rs.close();
stmt.close();
conn.close();
%>

有时时正常的，但是刷新一下又错了，再刷新又正常了：
HTTP Status 500 - /test.jsp (line: 1, column: 13) equal symbol expected

type Exception report

message /test.jsp (line: 1, column: 13) equal symbol expected

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /test.jsp (line: 1, column: 13) equal symbol expected
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:443)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:89)
org.apache.jasper.compiler.Parser.parseAttribute(Parser.java:217)
org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:162)
org.apache.jasper.compiler.Parser.parseAttributes(Parser.java:183)
org.apache.jasper.compiler.ParserController.getPageEncodingForJspSyntax(ParserController.java:479)
org.apache.jasper.compiler.ParserController.determineSyntaxAndEncoding(ParserController.java:420)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:190)
org.apache.jasper.compiler.ParserController.parseDirectives(ParserController.java:119)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:193)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.42 logs.

[rumlee]

<%@ page c%> 第一行我就没看懂，难道是我孤陋寡闻了。

[列星]

额，忘了删掉的…… 这是他们的代码，貌似是语言选择的。这行删不删结果都是一样的

[ayong95]

Class.forName("com.mysql.jdbc.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/test","root","12345678"); Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); 你的这些代码在java 类中都会报错，写在 jsp中虽然不报错，但你觉得会运行正常？

[shy315]

删了第一行，有没有清除缓存。 报错就是第一行啊。 Class.forName这些代码不用try...catch吗

[imknown]

Class.forName("com.mysql.jdbc.Driver") 注册一次就够了吧？