struts2 中请求转发与请求重定向方法，重定向携带参数

小灰灰 2022-05-22 11:53 610阅读 0赞

## Struts2请求方式有七种，主要介绍转发和重定向，其它有兴趣可以自行去了解。 ##

转发和重定向又分为转发、重定向到jsp、和到action

**下面就直接给出他们的配置**

<?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="result" namespace="/" extends="struts-default">
    		
    		<action name="Demo1Action" class="struts2.result.Demo1Action" method="execute">
    			
    			<result name="success" type="dispatcher">/hello.jsp</result>
    		</action>
    		
    		<action name="Demo2Action" class="struts2.result.Demo2Action" method="execute">
    			
    			<result name="success" type="redirect">/hello.jsp</result>
    		</action>
    		
    		<action name="Demo3Action" class="struts2.result.Demo3Action" method="execute">
    			<result name="success" type="chain">
    				
    				<param name="actionName">Demo1Action</param>
    				
    				<param name="namespace">/</param>
    			</result>
    			
    		</action>
    		
    		<action name="Demo4Action" class="struts2.result.Demo4Action" method="execute">
    			<result name="success" type="redirectAction">
    				<param name="actionName">Demo1Action</param>
    				<param name="namespace">/</param>
    			</result>
    			
    		</action>
    	</package>
    	
    	
    </struts>

### 下面再介绍一下重定向的时候携带参数的问题（直接给出代码） ###

package test;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class DemoAction extends ActionSupport{
    	//必须要有get / set方法
    	private String name;
    	private Integer age;
    	
    	@Override
    	public String execute() throws Exception {
    		//模仿从数据库取数据
    		name = "tom";
    		age = 18;
    		
    		
    		return SUCCESS;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public Integer getAge() {
    		return age;
    	}
    	public void setAge(Integer age) {
    		this.age = age;
    	}	
    
    }

package test;
    
    public class Demo1Action {
    
    
    	public String execute(){
    		
    		return "success";
    	}
    	
    }

<?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="hello" namespace="/" extends="struts-default">
    		<action name="DemoAction" class="test.DemoAction" method="execute">
    			<result name="success" type="redirectAction">
    				<param name="actionName">Demo1Action</param>
    				<param name="namespace">/</param>
    				
    				<param name="name">${name}</param>
    				<param name="age">${age}</param>
    			</result>
    		</action>
    		
    		<action name="Demo1Action" class="test.Demo1Action" method="execute">
    			<result name="success" type="dispatcher">/hello.jsp</result>
    		</action>
    	</package>
    </struts>

# 代码亲测有效 #

## 效果图 ##

## 1、访问地址 ##

![20191026174315334.png][]

## 2、结果 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RvbXdpbGRib2Fy_size_16_color_FFFFFF_t_70][]

[20191026174315334.png]: /images/20220522/92972e2d3be544359e09c0b2399a02a6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RvbXdpbGRib2Fy_size_16_color_FFFFFF_t_70]: /images/20220522/bc6e6557abd346a4b45b42015757190e.png