java 支持JSON和XML marshall

Posted 2021-05-08

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">

	<mvc:annotation-driven/>
	
	<mvc:resources location="pdfs" mapping="/pdfs/**"/>
	
	<context:component-scan base-package="com.pluralsight"/>
	
	<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
		<property name="order" value="1" />
		<property name="contentNegotiationManager">
			<bean class="org.springframework.web.accept.ContentNegotiationManager">
				<constructor-arg>
					<bean class="org.springframework.web.accept.PathExtensionContentNegotiationStrategy">
						<constructor-arg>
							<map>
								<entry key="json" value="application/json" />
								<entry key="xml" value="application/xml" />
							</map>
						</constructor-arg>
					</bean>
				</constructor-arg>
			</bean>
		</property>
		
		<property name="defaultViews">
			<list>
				<bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
				<bean class="org.springframework.web.servlet.view.xml.MarshallingView">
					<constructor-arg>
						<bean class="org.springframework.oxm.xstream.XStreamMarshaller">
							<property name="autodetectAnnotations" value="true" />
						</bean>
					</constructor-arg>
				</bean>
			</list>
		</property>
	</bean>
	
	<mvc:interceptors>
		<bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor" p:paramName="language"/>
	</mvc:interceptors>
	
	<bean id="localeResolver" class="org.springframework.web.servlet.i18n.SessionLocaleResolver" p:defaultLocale="en"/>
	
	<bean id="messageSource" 
	class="org.springframework.context.support.ResourceBundleMessageSource" 
	p:basename="messages"></bean>
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
	 p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" p:order="2"/>
	 	
	 <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" p:order="0"/>

</beans>

url:
http://localhost:8080/FitnessTracker/activities.json
output:
[{"desc":"Run"},{"desc":"Bike"},{"desc":"Swim"}]

package com.pluralsight.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.pluralsight.model.Activity;
import com.pluralsight.model.Exercise;
import com.pluralsight.service.ExerciseService;


@Controller
public class MinutesController {

	@Autowired
	private ExerciseService exerciseService;
	
	@RequestMapping(value = "/addMinutes")
	public String addMinutes(@ModelAttribute ("exercise") Exercise exercise) {
		
		System.out.println("exercise: " + exercise.getMinutes());
		System.out.println("exercise activity: " + exercise.getActivity());
			
		
		
		return "addMinutes";
	}
	
	@RequestMapping(value = "/activities", method = RequestMethod.GET)
	public @ResponseBody List<Activity> findAllActivities() {
		return exerciseService.findAllActivities();
	}
	
//	@RequestMapping(value = "/addMoreMinutes")
//	public String addMoreMinutes(@ModelAttribute ("exercise") Exercise exercise) {
//		
//		System.out.println("exercising: " + exercise.getMinutes());
//		
//		return "addMinutes";
//	}
}

package com.pluralsight.service;

import java.util.ArrayList;
import java.util.List;

import org.springframework.stereotype.Service;

import com.pluralsight.model.Activity;


@Service("exerciseService")
public class ExerciseServiceImpl implements ExerciseService {

	public List<Activity> findAllActivities() {
		
		List<Activity> activities = new ArrayList<Activity>();
		
		Activity run = new Activity();
		run.setDesc("Run");
		activities.add(run);
		
		Activity bike = new Activity();
		bike.setDesc("Bike");
		activities.add(bike);
		
		Activity swim = new Activity();
		swim.setDesc("Swim");
		activities.add(swim);
		
		return activities;
	}
	
}

package com.pluralsight.model;

public class Activity {

	private String desc;

	public String getDesc() {
		return desc;
	}

	public void setDesc(String desc) {
		this.desc = desc;
	}
	
}