请各位帮忙看看小弟我的jsp连接mysql哪里出了有关问题拉
日期：2014-05-18 浏览次数：20862 次
请各位帮忙看看我的jsp连接mysql哪里出了问题拉
故障:JSP连不上MYSQL数据库!!
配置:
JDK5.0.11 + tomcat6.0 + mysql5.0 分别测试安装成功,运行.
然后下载驱动mm.mysql,(这个解释一下，没有用最新那个什么驱动是因为我做的毕业设计上是用这个驱动).然后解压出一个文件org\gjt\mm\mysql,放到这个路径C:\Tomcat 6.0\webapps\ROOT\WEB-INF\classes\org\gjt\mm\mysql
测试代码:
<%@ page contentType= "text/html;charset=gb22 " %>
<%@ page import= "java.sql.* " %>
<html>
<body>
<%
Class.forName( "org.gjt.mm.mysql.Driver ").newInstance();
String url= "jdbc:mysql://localhost/bookstore?user=depthman& "+ "password=depthman&useUnicode=true;characterEncoding=8859_1 "
//depthman是mysql的用户名,密码也是depthman,我不知道这一句写的对不对!?
bookstore是已经存在的数据库.
Connection conn=DriverManager.getConnection(url);
Statement stmt=conn.createStatement();
String sql= "select * from bookstore; ";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()){%>
第一个字段内容为： <% =rs.getString(1) %>
第二个字段内容为： <% =rs.getString(2) %>
<%}%>
<% out.print( "数据库操作成功，恭喜你！！！ "); %>
rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
错误:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 7 in the jsp file: /test.jsp
Syntax error, insert "; " to complete LocalVariableDeclarationStatement
4: <body>
5: <%
6: Class.forName( "org.gjt.mm.mysql.Driver ").newInstance();
7: String url= "jdbc:mysql://localhost/bookstore?user=depthman& "+ "password=depthman&useUnicode=true;characterEncoding=8859_1 "
8: Connection conn=DriverManager.getConnection(url);
9: Statement stmt=conn.createStatement();
10: String sql= "select * from bookstore; ";
An error occurred at line: 13 in the jsp file: /test.jsp
Syntax error on token "= ", @ expected
10: String sql= "select * from bookstore; ";
11: ResultSet rs=stmt.executeQuery(sql);
12: while(rs.next()){%>
13: 第一个字段内容为： <% =rs.getString(1) %>
14: 第二个字段内容为： <% =rs.getString(2) %>
15: <%}%>
16: <% out.print( "数据库操作成功，恭喜你！！！ "); %>
An error occurred at line: 13 in the jsp file: /test.jsp
Syntax error on token(s), misplaced construct(s)
10: String sql= "select * from bookstore; ";
11: ResultSet rs=stmt.executeQuery(sql);
12: while(rs.next()){%>
13: 第一个字段内容为： <% =rs.getString(1) %>
14: 第二个字段内容为： <% =rs.getString(2) %>
15: <%}%>
16: <% out.print( &quo
故障:JSP连不上MYSQL数据库!!
配置:
JDK5.0.11 + tomcat6.0 + mysql5.0 分别测试安装成功,运行.
然后下载驱动mm.mysql,(这个解释一下，没有用最新那个什么驱动是因为我做的毕业设计上是用这个驱动).然后解压出一个文件org\gjt\mm\mysql,放到这个路径C:\Tomcat 6.0\webapps\ROOT\WEB-INF\classes\org\gjt\mm\mysql
测试代码:
<%@ page contentType= "text/html;charset=gb22 " %>
<%@ page import= "java.sql.* " %>
<html>
<body>
<%
Class.forName( "org.gjt.mm.mysql.Driver ").newInstance();
String url= "jdbc:mysql://localhost/bookstore?user=depthman& "+ "password=depthman&useUnicode=true;characterEncoding=8859_1 "
//depthman是mysql的用户名,密码也是depthman,我不知道这一句写的对不对!?
bookstore是已经存在的数据库.
Connection conn=DriverManager.getConnection(url);
Statement stmt=conn.createStatement();
String sql= "select * from bookstore; ";
ResultSet rs=stmt.executeQuery(sql);
while(rs.next()){%>
第一个字段内容为： <% =rs.getString(1) %>
第二个字段内容为： <% =rs.getString(2) %>
<%}%>
<% out.print( "数据库操作成功，恭喜你！！！ "); %>
rs.close();
stmt.close();
conn.close();
%>
</body>
</html>
错误:
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 7 in the jsp file: /test.jsp
Syntax error, insert "; " to complete LocalVariableDeclarationStatement
4: <body>
5: <%
6: Class.forName( "org.gjt.mm.mysql.Driver ").newInstance();
7: String url= "jdbc:mysql://localhost/bookstore?user=depthman& "+ "password=depthman&useUnicode=true;characterEncoding=8859_1 "
8: Connection conn=DriverManager.getConnection(url);
9: Statement stmt=conn.createStatement();
10: String sql= "select * from bookstore; ";
An error occurred at line: 13 in the jsp file: /test.jsp
Syntax error on token "= ", @ expected
10: String sql= "select * from bookstore; ";
11: ResultSet rs=stmt.executeQuery(sql);
12: while(rs.next()){%>
13: 第一个字段内容为： <% =rs.getString(1) %>
14: 第二个字段内容为： <% =rs.getString(2) %>
15: <%}%>
16: <% out.print( "数据库操作成功，恭喜你！！！ "); %>
An error occurred at line: 13 in the jsp file: /test.jsp
Syntax error on token(s), misplaced construct(s)
10: String sql= "select * from bookstore; ";
11: ResultSet rs=stmt.executeQuery(sql);
12: while(rs.next()){%>
13: 第一个字段内容为： <% =rs.getString(1) %>
14: 第二个字段内容为： <% =rs.getString(2) %>
15: <%}%>
16: <% out.print( &quo
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