YouTipEclipse Jsp
This article assumes you have already installed the JDK environment. If not, you can refer to (#).
We can use Eclipse to set up the JSP development environment. First, let's download the following software packages respectively:
* **Eclipse J2EE๏ผ**[http://www.eclipse.org/downloads/](http://www.eclipse.org/downloads/)
* **Tomcat๏ผ**[http://tomcat.apache.org/download-70.cgi](http://tomcat.apache.org/download-70.cgi)
* * *
## Tomcat Download and Installation
You can download the corresponding package according to your system (taking the Windows system as an example below):
!(#)
After downloading, extract the compressed package to the D drive (you can choose yourself):
!(#)
Note that the directory name must not contain Chinese characters or spaces. The directory introduction is as follows:
* bin๏ผBinary execution files. The most commonly used file inside is **startup.bat**, if it is a Linux or Mac system, the startup file is **startup.sh**.
* conf: Configuration directory. The most core file inside is **server.xml**. You can change the port number, etc. in it. The default port number is 8080, which means this port number cannot be occupied by other applications.
* lib๏ผLibrary files. The directory where the jar packages required for tomcat runtime are located.
* logs๏ผLogs
* temp๏ผTemporarily generated files, i.e., cache
* webapps๏ผWeb applications. **Web applications placed in this directory can be accessed directly by the browser**
* work๏ผCompiled class files.
Then we can double-click startup.bat to start Tomcat, and the following interface will pop up:
!(#)
At this point, the local server has been set up. If you want to close the server, you can directly close the above window, or type Ctrl+C inside to stop the service.
Then we enter **http://localhost:8080/** in the browser, if the following interface pops up, it means tomcat is installed successfully and started:
!(#)
Now let's test it in the browser:
First, create a new jsp file in the D:apache-tomcat-8.0.14webappsROOT directory:
!(#)
The test.jsp file code is as follows:
Then visit the address **http://localhost:8080/test.jsp** in the browser, the output result is as follows:
!(#)
* * *
## Associating Tomcat with Eclipse
After downloading Eclipse J2EE, just extract it and use it. We open Java EE, select the menu bar Windows-->preferences (For Mac system, it is Eclipse-->Preferences), and the following interface pops up:
!(#)
In the above figure, click the "add" button, and the following interface pops up:
!(#)
In the options, we select the corresponding Tomcat version, then click "Next", select the Tomcat installation directory, and select the Java environment we installed:
!(#)
Click "Finish" to complete the configuration.
### Create Instance
Select "File-->New-->Dynamic Web Project" to create the TomcatTest project:
!(#)
!(#)
Click the red box part in the figure above, and the following interface pops up:
!(#)
Note that if the Tomcat and JDK we installed earlier have been selected by default, you can skip this step.
Then, click finish to continue:
!(#)
!(#)
Project file structure:
!(#)
Analysis of each directory in the above figure:
* deployment descriptor๏ผDeployment description.
* Web App Libraries๏ผPackages you add can be placed inside.
* build๏ผPut the compiled files inside.
* WebContent๏ผPut the written pages inside.
Create a new test.jsp file under the WebContent folder. You can see its default code in the figure below:
Insert title here
Then we modify the test.jsp file code as shown below: