加了<%@ page import="javax.naming.Context" %> 仍然有问题错误变成: org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: [javac] Compiling 1 source fileD:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:61: cannot resolve symbol symbol : class Context location: class org.apache.jsp.connSQL_jsp Context initContext = new InitialContext(); ^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:61: cannot resolve symbol symbol : class InitialContext location: class org.apache.jsp.connSQL_jsp Context initContext = new InitialContext(); ^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:62: cannot resolve symbol symbol : class Context location: class org.apache.jsp.connSQL_jsp Context envContext = (Context)initContext.lookup("java:/comp/env"); ^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:62: cannot resolve symbol symbol : class Context location: class org.apache.jsp.connSQL_jsp Context envContext = (Context)initContext.lookup("java:/comp/env"); ^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:63: cannot resolve symbol symbol : class DataSource location: class org.apache.jsp.connSQL_jsp DataSource ds = (DataSource)envContext.lookup("jdbc/stu"); ^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error: D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:63: cannot resolve symbol symbol : class DataSource location: class org.apache.jsp.connSQL_jsp DataSource ds = (DataSource)envContext.lookup("jdbc/stu"); ^ 6 errors 我是新手,我在tomcat里设了个连接池,试试行不行,所以就写到jsp里了
仍然有问题错误变成:
org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
[javac] Compiling 1 source fileD:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:61: cannot resolve symbol
symbol : class Context
location: class org.apache.jsp.connSQL_jsp
Context initContext = new InitialContext();
^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:61: cannot resolve symbol
symbol : class InitialContext
location: class org.apache.jsp.connSQL_jsp
Context initContext = new InitialContext();
^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:62: cannot resolve symbol
symbol : class Context
location: class org.apache.jsp.connSQL_jsp
Context envContext = (Context)initContext.lookup("java:/comp/env");
^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:62: cannot resolve symbol
symbol : class Context
location: class org.apache.jsp.connSQL_jsp
Context envContext = (Context)initContext.lookup("java:/comp/env");
^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:63: cannot resolve symbol
symbol : class DataSource
location: class org.apache.jsp.connSQL_jsp
DataSource ds = (DataSource)envContext.lookup("jdbc/stu");
^An error occurred at line: 14 in the jsp file: /connSQL.jspGenerated servlet error:
D:\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\iTry\org\apache\jsp\connSQL_jsp.java:63: cannot resolve symbol
symbol : class DataSource
location: class org.apache.jsp.connSQL_jsp
DataSource ds = (DataSource)envContext.lookup("jdbc/stu");
^
6 errors
我是新手,我在tomcat里设了个连接池,试试行不行,所以就写到jsp里了
在哪里找的这样的例子?!
那是在XML文件里边配置的。
先找个简单的JSP-JDBC实例。