上節我們使用動態方法調用,這次給出更加方便,更加簡潔的形式,廢話不說,先上代碼:
struts配置文件;
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="actions" extends="struts-default" namespace="/actions">
<action name="Student*" class="com.bjsxt.struts2.action.StudentAction" method="{1}">
<result>/Student{1}_success.jsp</result>
</action>
<action name="*_*" class="com.bjsxt.struts2.action.{1}Action" method="{2}">
<result>/{1}_{2}_success.jsp</result>
</action>
</package>
</struts>
本次使用了兩個action,分別爲:StudentAction.java代碼如下:
package com.bjsxt.struts2.action;
import com.opensymphony.xwork2.ActionSupport;
public class StudentAction extends ActionSupport {
public String add() {
return SUCCESS;
}
public String delete() {
return SUCCESS;
}
}
TeacherAction.java代碼如下:
package com.bjsxt.struts2.action;
import com.opensymphony.xwork2.ActionSupport;
public class TeacherAction extends ActionSupport {
public String add() {
return SUCCESS;
}
public String delete() {
return SUCCESS;
}
}
使用的jsp有四個,名稱分別爲:1 Studentadd_success.jsp 2 Studentdelete_success.jsp 3 Teacher_add_success.jsp 4 Teacher_delete_success.jsp,我們來演示一下這樣做的好處。
在struts中
<action name="Student*" class="com.bjsxt.struts2.action.StudentAction" method="{1}">
<result>/Student{1}_success.jsp</result>
</action>
name後面Student*,大家知道*表示通配,這樣method爲1使用StudentAction的add方法,返回Studentadd_success.jsp。同理第二個action可以匹配多個action中不同方法,更加的靈活,大家要是不太清楚地話可以觀察地址欄的url來理解。