Struts 2-set up Hello world under struts2

Struts 2-set up Hello world under struts2
1. Hello World under Struts 2

1. Create a new Web Project named HelloWorld

2. Window-> Preferences-> tomcat select the downloaded tomcat

3. Window-> Preferences-> Java-> Installed JREs select the local jre

4. Decompress Struts-2.3.20 \ apps \ struts2-blank.war in struts 2 File

5. Copy struts-2.3.20 \ apps \ struts2-blank \ WEB-INF \ classes \ struts. xml to the src directory of the HelloWorld Project

6. Copy all files under struts-2.3.20 \ apps \ struts2-blank \ WEB-INF \ lib to the WebRoot \ WEB-INF \ lib directory

7. Copy struts-2.3.20 \ apps \ struts2-blank \ WEB-INF \ web. xml to the web. xml of the HelloWorld Project

Xmlns = "http://java.sun.com/xml/ns/javaee"

Xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"

Xsi: schemaLocation = "http://java.sun.com/xml/ns/javaee

Http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd>

Index. jsp

Struts2

Org. apache. struts2.dispatcher. ng. filter. StrutsPrepareAndExecuteFilter

Struts2

/*

8. Modify Struts. xml

"-// Apache Software Foundation // DTD Struts Configuration 2.3 // EN"

Http://struts.apache.org/dtds/struts-2.3.dtd>

/Hello. jsp

9. Deploy and access the project

Http: // localhost: 8080/HelloWorld/hello. action

PS:

(1) configure the following line in struts. xml:

When you modify the configuration, you do not need to restart the server.

(2) how to view the source code:

Select the jar file to be viewed, right-click Properetie-> Java Source Attachment-> Externsl Folder-> struts-2.3.20/src/core/src/main/java

Click the class file in the jar file again to view the source code.

(3) view Javadoc

Select the jar file to be viewed, right-click Properetie-> Javadoc Location-> struts-2.3.20/docs/struts2-core-apidocs/

After the configuration is complete, select any class, such as org. apache. struts2.dispatcher. ng. filter. StrutsPrepareAndExecuteFilter. Press f1, The Javadoc file of this class will appear.