首先导入所需的jar包（15个）
1）spring的IOC包
2）struts2自身包
3）spring整合struts2
4）struts2整合spring
2、然后配置struts2核心过滤器（web.xml）
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
3、创建实体类，业务类和web页面
public
class
User {
private
int
id;
private
String
name;
}
Service：
package
star.july.service;
import
star.july.entity.User;
public
interface
IUserService {
public
void
save(User u);
}
UserServiceImpl
package star.july.service;
import java.util.List;
import star.july.entity.Student;
public class StudentServiceImpl implements IStudentService {
public List<Student> queryAll() {
System.out.println("调用了queryAll方法");
return null;
}
}
JSP页面
reg.jsp
<body>
<h2>填写注册信息</h2>
<form
action="<s:url
value='/user_get'/>"
method="post">
ID:<input
type="text"
name="user.id"><br>
姓名:<input
type="text"
name="user.name"><br>
<input
type="submit"
value="提交"/>
</form>
</body>
success.jsp
<body>
<h2>注册成功！</h2>
</body>
4、编写一个Action类，实现逻辑
package
star.july.web;
import
star.july.entity.User;
import
star.july.service.IUserService;
import
com.opensymphony.xwork2.ActionSupport;
public
class
UserAction
extends
ActionSupport{
private
IUserService userService;
public
void
setUserService(IUserService
userService)
{
this.userService
=
userService;
}
//接收参数
private
User user;
public
User getUser()
{
return
user;
}
public
void
setUser(User
user)
{
this.user
=
user;
}
public
String get(){
userService.save(user);
System.out.println("注册成功");
return
SUCCESS;
}
}
5、配置applicationContext.xml
<?xml
version="1.0"
encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 配置一个javabean
id: 对象的唯一标记（别名）
class: 需要创建的对象的全名
-->
<bean
id="userServiceID"
class="star.july.service.UserServiceImpl"></bean>
<!--
红色加粗标记要与struts.xml配置文件进行连接-->
<bean
id="userActionID"
class="star.july.web.UserAction"
scope="prototype">
<!-- 注入service对象 -->
<property
name="userService"
ref="userServiceID"></property>
</bean>
</beans>
6、配置struts2
<?xml
version="1.0"
encoding="UTF-8"
?>
<!DOCTYPE
struts
PUBLIC
"-//Apache Software
Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package
name="base"
namespace="/"
extends="struts-default">
<!-- 其中的class是applicationContext中的bean的ID，只有这样才可以二者连接起来，红色标记-->
<actionname="user_*"class="userActionID"method="{1}">
<result
>/success.jsp</result>
</action>
</package>
</struts>
7、在web.xml中加载Spring的配置文件
<!-- 启动spring -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 配置参数，指向文件路径 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
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