SpringMVC 支持多视图（xml，json,pdf等）

╰半橙微兮° 2022-04-01 16:40 186阅读 0赞

**一、SpringMvc提供了**对excel,pdf,json，xml等多种视图支持 。本处就以xml格式来作为示例，其他的需要导入不同的jar包

XML视图需要导入的jar包：spring-oxm-4.1.2.RELEASE.jar

**二、application.xml配置** （在上一篇 springmvc 全注解开发中的application.xml中配置即可）

<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
    		
    		<property name="contentNegotiationManager">
    			<bean class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean">
    				<property name="mediaTypes">
    					<map>
    						<entry key="json" value="application/json"></entry>
    						<entry key="xml" value="application/xml"></entry>
    						<entry key="pdf" value="application/pdf"></entry>
    					</map>
    				</property>
    
    			</bean>
    
    		</property>
    
    		
    		<property name="defaultViews">
    			
    			<list>
    				
    				<bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"></bean>
    
    				
    				<bean class="org.springframework.web.servlet.view.xml.MarshallingView">
    					<constructor-arg>
    						<bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
    							<property name="classesToBeBound">
    								<list>
    									<value>com.shenzhenair.pojo.User</value>
    								</list>
    							</property>
    						</bean>
    					</constructor-arg>
    				</bean>
    
    			</list>
    
    		</property>
    	</bean>

**三、实体类加注解@XmlRootElement**

package com.shenzhenair.pojo;
    import lombok.Data;
    import javax.xml.bind.annotation.XmlRootElement;
    
    @Data
    @XmlRootElement
    public class User {
        private  String name;
        private  Integer age;
        private  boolean isMarry;
        private  double income;
        private  String[] interests;
    }

四、代码示例

@Controller
    @RequestMapping("/hello")
    public class ParamController {
      // 多视图支持
        @RequestMapping(value = "/test17")
        public User testMultiView(){
            User user = new User();
            user.setName("tom");
            user.setMarry(true);
            user.setIncome(22.0);
            user.setAge(18);
            return user;
        }
    
    }

**五、访问路径及其结果**

*  json视图：

![20181231182125266.png][]

*  XML视图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM4MDY4ODEy_size_16_color_FFFFFF_t_70][]

[20181231182125266.png]: /images/20220401/a11ada1cd3d2494a8df5252c767c2091.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L20wXzM4MDY4ODEy_size_16_color_FFFFFF_t_70]: /images/20220401/3653384079bb443f991f2b82f99ebf87.png