These are the things I found during my learning or online. Maybe you seem to be mentally retarded, but it is not the same for a person you just came into contact. If you are not a newbie, stop watching it again.
1. Problems Encountered during JSP connection to SQL Server 2000
In another article: http://www.cnblogs.com/Aricc/archive/2008/05/24/1206531.html
2. The application deployed in Tomcat. The application in the URL ProgramThe name is case sensitive.
For example, if the name of the deployed application is myweb1, you will be prompted when you access the application through http: // localhost: 8080/myweb1.
The requested resource (/myweb1/) is not available.
Only http: // localhost: 8080/myweb1 can be used.
3. You can use out. Print (); to output a string, but use system. Out. Print.
The reason is that the former is the output stream output to the page, and the latter is the output to the console. That is to say, the content output using the following method is not on the page, but on the console. If you are using tomcat, you can see the output in its console.