一个简单的问题
<%@ page contentType="text/html; charset=gb2312"%>
<%@ page language="java"
%>
<%@ page import="com.mysql.jdbc.Driver"
%>
<%@ page import="java.sql.*"
%>
<html>
<body>
<%
//驱动程序名
String driverName="com.mysql.jdbc.Driver";
//数据库用户名
String userName="root";
//密码
String userPasswd="123456";
//数据库名
String dbName="student";
//表名
String tableName="studentinfo";
//联结字符串
String url="jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPasswd;
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection conn=DriverManager.getConnection(url);
Statement statement = conn.createStatement();
String sql="SELECT * FROM "+tableName;
ResultSet rs = statement.executeQuery(sql);
//获得数据结果集合
ResultSetMetaData rmeta = rs.getMetaData();
//确定数据集的列数，亦字段数
int numColumns=rmeta.getColumnCount();
// 输出每一个数据值
out.print("id");
out.print("|");
out.print("num");
out.print("<br>");
while(rs.next()) {
out.print(rs.getString(1)+"
");
out.print("|");
out.print(rs.getString(2));
out.print("<br>");
}
out.print("<br>");
out.print("数据库操作成功，恭喜你");
rs.close();
statement.close();
conn.close();
%>
</body>
</html>
我先前已经把mysql-connector-java-5.0.4-bin.jar复制到TOMCAT6.0了,现在上面的代码放到webapps/JDBC下的JSP中
http://localhost:8080/jdbc/a.jsp 还是运行不出啊
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: An exception occurred processing JSP page /a.jsp at line 37
34:
35:Class.forName("com.mysql.jdbc.Driver").newInstance();
36:
37:Connection conn=DriverManager.getConnection(url);
38:
39:Statement statement = conn.createStatement();
40:
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
javax.servlet.ServletException: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
org.apache.jsp.a_jsp._jspService(a_jsp.java:149)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
com.mysql.jdbc.SQLError.createSQLException(SQLError.java:946)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2870)
com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:812)
com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3269)
com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1182)
com.mysql.jdbc.Connection.createNewIO(Connection.java:2670)
com.mysql.jdbc.Connection. <init>(Connection.java:1531)
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
java.sql.DriverManager.getConnection(Unknown Source)
java.sql.DriverManager.getConnection(Unknown Source)
org.apache.jsp.a_jsp._jspService(a_jsp.java:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs. 提示的是权限问题...，检查MySQL用户权限 看看
http://js.ufstone.net/img/sigline.gif
北京华盛癫痫病医院好吗
北京癫痫病专科医院排名
北京华盛癫痫病医院
昆明军海癫痫病医院
昆明军海医院怎么样
北京华盛癫痫病医院
北京华盛癫痫病医院
云南昆明军海医院
北京华盛医院怎么样
昆明军海癫痫病医院
北京华盛癫痫病医院
昆明军海癫痫病专科医院
页:
[1]