原创不易,转载请注明出处:SpringMVC整合JSON、XML视图

代码下载地址:http://www.zuidaima.com/share/1751862737554432.htm

SpringMVC中整合了JSON、XML的视图,可以通过这些视图完成Java对象 到XML、JSON的转换。转换XML提供了MarshallingView,开发者只需用注入相应的marshaller、和属性配置,即可自动完成 Java的Model对象中的数据到XML的编组。

Email:hoojo_@126.com

Blog:http://blog.csdn.net/IBM_hoojo

http://hoojo.cnblogs.com/

一、 准备工作

1、 本次程序会涉及到Jackson、xStream、Jibx、Jaxb2、castor等技术,如果你对这些技术还不是很了解。建议阅读:http://www.cnblogs.com/hoojo/archive/2011/04/27/2030264.html

这篇文章中涉及到的内容应该对你有不少帮助。

2、 jar包下载

spring各版本jar下载地址:http://ebr.springsource.com/repository/app/library/detail?name=org.springframework.spring

相关的依赖包也可以在这里找到:http://ebr.springsource.com/repository/app/library

3、 至少需要以下jar包

clip_image002

4、 当前工程的web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" 
    xmlns="http://java.sun.com/xml/ns/j2ee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  

    <-- 配置Spring核心控制器 -->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/dispatcher.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet> 

    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
<-- 解决工程编码过滤器 -->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
   

    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>    

    <welcome-file-list>
      <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

5、 WEB-INF中的dispatcher.xml配置

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:mvc="http://www.springframework.org/schema/mvc"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:util="http://www.springframework.org/schema/util"

    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-3.0.xsd

    http://www.springframework.org/schema/mvc

    http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd

    http://www.springframework.org/schema/context 

    http://www.springframework.org/schema/context/spring-context-3.0.xsd

    http://www.springframework.org/schema/util

    http://www.springframework.org/schema/util/spring-util-3.0.xsd">

    

    <-- 注解探测器 -->

    <context:component-scan base-package="com.hoo.controller"/>

    

    <-- 视图解析器,根据视图的名称new ModelAndView(name),在配置文件查找对应的bean配置 -->

    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver">

        <property name="order" value="1"/>

    </bean>

    

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>

    </bean>

</beans>

启动后,可以看到index.jsp 没有出现异常或错误。那么当前SpringMVC的配置就成功了。

 

二、 利用Jaxb2编组XML

1、 Jaxb2可以完成XML和Java的相互转换,在WebService中用得较多。前面也介绍过Jaxb2 的用法。

在线博文:

For cnblogs:http://www.cnblogs.com/hoojo/archive/2011/04/26/2029011.html

For csdn:http://blog.csdn.net/IBM_hoojo/archive/2011/04/26/6363491.aspx

2、 首先在dispatcher.xml中配置Jaxb2的marshaller的视图,配置如下:

  <bean name="jaxb2MarshallingView" class="org.springframework.web.servlet.view.xml.MarshallingView">

    <constructor-arg>

        <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">

            <property name="classesToBeBound">

                <array>

                    <value>com.hoo.entity.User</value>

                    <value>com.hoo.entity.AccountBean</value>

                    <value>com.hoo.entity.MapBean</value>

                    <value>com.hoo.entity.ListBean</value>

                </array>

            </property>

        </bean>

    </constructor-arg>

</bean>

Jaxb2的jar在jdk中已经包含,所以不需要添加额外的jar包。详细信息你可以参考1中的博文。上面的 jaxb2MarshallingView视图的class是MarshallingView,它有一个构造器需要传递一个Marshaller。 Marshaller主要完成编组,即将Java对象转换成XML的这么一个东东。我们在这个构造器中注入了Jaxb2Marshaller这个类,这个 bean有一个classesToBeBound属性,这个属性是一个数组。需要将即将转换成XML的Java对象配置在这里。而且这些对象需要进行 Annotation注解。

3、 创建Jaxb2MarshallingViewController,完成Java对象到XML的转换

单个JavaBean的转换,代码如下:



package com.hoo.controller;

 

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import com.hoo.entity.AccountBean;

import com.hoo.entity.Brithday;

import com.hoo.entity.DifferBean;

import com.hoo.entity.ListBean;

import com.hoo.entity.MoreBean;

import com.hoo.entity.User;

 

/**

 * <b>function:</b>Jaxb2MarshallingView 视图,利用Jaxb2进行Java对象到XML的转换技术

 * @author hoojo

 * @createDate 2011-4-27 下午03:20:23

 * @file Jaxb2MarshallingViewController.java

 * @package com.hoo.controller

 * @project SpringMVC4View

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

@Controller

@RequestMapping("/jaxb2/view")

public class Jaxb2MarshallingViewController {

    

    /*

     * MarshallingView Jaxb2Marshaller 需要配置转换成xml的java对象的Annotation

     */

    @RequestMapping("/doXMLJaxb2")

    public ModelAndView doXMLJaxb2View() {

        System.out.println("#################ViewController doXMLJaxb2View##################");

        ModelAndView mav = new ModelAndView("jaxb2MarshallingView");

        

        AccountBean bean = new AccountBean();

        bean.setAddress("address");

        bean.setEmail("email");

        bean.setId(1);

        bean.setName("haha");

        Brithday day = new Brithday();

        day.setBrithday("2010-11-22");

        bean.setBrithday(day);

        

        mav.addObject(bean);

        

        return mav;

    }

}

上面的代码的ModelAndView配置了jaxb2MarshallingView这个视图,就表示结果集会通过这个视图进行编组后显示。上面需要转换的AccountBean和Birthday对象,这些对象需要配置annotation,前面已经讲到annotation对JavaBean转换XML的作用。我们来看看AccountBean对象代码:



package com.hoo.entity;

 

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlRootElement;

 

@XmlRootElement(name = "account")

public class AccountBean {

    private int id;

    private String name;

    private String email;

    private String address;

    private Brithday brithday;

    

    @XmlElement

    public Brithday getBrithday() {

        return brithday;

    }

    public void setBrithday(Brithday brithday) {

        this.brithday = brithday;

    }

    

    @XmlElement

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    

    @XmlElement

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    

    @XmlElement

    public String getEmail() {

        return email;

    }

    public void setEmail(String email) {

        this.email = email;

    }

    

    @XmlElement

    public String getAddress() {

        return address;

    }

    public void setAddress(String address) {

        this.address = address;

    }

    

    @Override

    public String toString() {

        return this.name + "#" + this.id + "#" + this.address + "#" + this.brithday + "#" + this.email;

    }

}

在getter方法都有部分注解,如果你想了解更多的jaxb2的相关技术,参考:http://www.cnblogs.com/hoojo/archive/2011/04/26/2029011.html

Brithday



package com.hoo.entity;

 

public class Brithday {

    private String brithday;

    

    public Brithday() {}

    

    public Brithday(String brithday) {

        this.brithday = brithday;

    }

    

    public String getBrithday() {

        return brithday;

    }

 

    public void setBrithday(String brithday) {

        this.brithday = brithday;

    }

}

Brithday是AccountBean中的一个属性,在AccountBean中已经注解过。这里就不需要进行注解配置。

通过浏览器请求:http://localhost:8080/SpringMVC4View/jaxb2/view/doXMLJaxb2.do

结果如下:



<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<account><address>address</address><brithday><brithday>2010-11-22</brithday></brithday>

<email>email</email><id>1</id><name>haha</name></account>

4、 转换带List属性的JavaEntity



/**

 * <b>function:</b>转换带有List属性的JavaBean

 * @author hoojo

 * @createDate 2011-4-27 下午05:32:22

 * @return

 */

@RequestMapping("/doListXMLJaxb2")

public ModelAndView doListXMLJaxb2View() {

    System.out.println("#################ViewController doListXMLJaxb2View##################");

    ModelAndView mav = new ModelAndView("jaxb2MarshallingView");

    List<Object> beans = new ArrayList<Object>(); 

    for (int i = 0; i < 3; i++) {

        AccountBean bean = new AccountBean();

        bean.setAddress("address#" + i);

        bean.setEmail("email" + i + "@12" + i + ".com");

        bean.setId(1 + i);

        bean.setName("haha#" + i);

        Brithday day = new Brithday();

        day.setBrithday("2010-11-2" + i);

        bean.setBrithday(day);

        beans.add(bean);

        

        User user = new User();

        user.setAddress("china GuangZhou# " + i);

        user.setAge(23 + i);

        user.setBrithday(new Date());

        user.setName("jack#" + i);

        user.setSex(Boolean.parseBoolean(i + ""));

        beans.add(user);

    }

    

    ListBean list = new ListBean();

    list.setList(beans);

    mav.addObject(list);

    

    return mav;

}

ListBean注解过的代码



package com.hoo.entity;

 

import java.util.List;

import javax.xml.bind.annotation.XmlElement;

import javax.xml.bind.annotation.XmlElements;

import javax.xml.bind.annotation.XmlRootElement;

 

@SuppressWarnings("unchecked")

@XmlRootElement

public class ListBean {

    private String name;

    private List list;

    

    @XmlElements({

        @XmlElement(name = "user", type = User.class),

        @XmlElement(name = "account", type = AccountBean.class),

    })

    public List getList() {

        return list;

    }

 

    public void setList(List list) {

        this.list = list;

    }

 

    public String getName() {

        return name;

    }

 

    public void setName(String name) {

        this.name = name;

    }

}

通过上面的注解可以看出List中只能存储User、AccountBean对象,关于User对象的代码和AccountBean对象的是一样的,只是类名不同而已。读者可以自己添加。在WebBrowser中请求:http://localhost:8080/SpringMVC4View/jaxb2/view/doListXMLJaxb2.do

结果如下:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<listBean>

<account><address>address#0</address><brithday><brithday>2010-11-20</brithday></brithday>

<email>email0@120.com</email><id>1</id><name>haha#0</name></account>

<user><address>china GuangZhou# 0</address><age>23</age>

<brithday>2011-04-27T17:02:38.028+08:00</brithday><name>jack#0</name><sex>false</sex></user>

<account><address>address#1</address><brithday><brithday>2010-11-21</brithday></brithday>

<email>email1@121.com</email><id>2</id><name>haha#1</name></account>

<user><address>china GuangZhou# 1</address><age>24</age>

<brithday>2011-04-27T17:02:38.028+08:00</brithday><name>jack#1</name><sex>false</sex></user>

<account><address>address#2</address><brithday><brithday>2010-11-22</brithday></brithday>

<email>email2@122.com</email><id>3</id><name>haha#2</name></account>

<user><address>china GuangZhou# 2</address><age>25</age>

<brithday>2011-04-27T17:02:38.028+08:00</brithday><name>jack#2</name><sex>false</sex></user>

</listBean>

5、 转换带有Map属性的JavaBean,Jaxb2转换Map有点复杂,先看看代码:



/**

 * <b>function:</b>转换带有Map属性的JavaBean

 * @author hoojo

 * @createDate 2011-4-27 下午05:32:42

 * @return

 */

@RequestMapping("/doMapXMLJaxb2")

public ModelAndView doMapXMLJaxb2View() {

    System.out.println("#################ViewController doMapXMLJaxb2View##################");

    ModelAndView mav = new ModelAndView("jaxb2MarshallingView");

    

    MapBean mapBean = new MapBean();

    

    HashMap<String, AccountBean> map = new HashMap<String, AccountBean>();

    AccountBean bean = new AccountBean();

    bean.setAddress("北京");

    bean.setEmail("email");

    bean.setId(1);

    bean.setName("jack");

    Brithday day = new Brithday();

    day.setBrithday("2010-11-22");

    bean.setBrithday(day);

    map.put("NO1", bean);

    

    bean = new AccountBean();

    bean.setAddress("china");

    bean.setEmail("tom@125.com");

    bean.setId(2);

    bean.setName("tom");

    day = new Brithday("2011-11-22");

    bean.setBrithday(day);

    map.put("NO2", bean);

    

    mapBean.setMap(map);

    

    mav.addObject(mapBean);

    

    return mav;

}

首先看看MapBean的代码,代码很简单就一个Map的属性。



package com.hoo.entity;

 

import java.util.HashMap;

import javax.xml.bind.annotation.XmlRootElement;

import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

import com.hoo.util.MapAdapter;

 

@XmlRootElement

public class MapBean {

    private HashMap<String, AccountBean> map;

    

    @XmlJavaTypeAdapter(MapAdapter.class)

    public HashMap<String, AccountBean> getMap() {

        return map;

    }

    public void setMap(HashMap<String, AccountBean> map) {

        this.map = map;

    }

}

上面的代码的getMap方法设置了XmlJavaTypeAdapter这个注解,注解里面的MapAdapter是我们自己实现的,而且还要构建一个MapElements数组元素。主要是继承XmlAdapter重写里面的几个方法完成的。

MapAdapter代码



package com.hoo.util;

 

import java.util.HashMap;

import java.util.Map;

import javax.xml.bind.annotation.adapters.XmlAdapter;

import com.hoo.entity.AccountBean;

 

/**

 * <b>function:</b>AccountBean 编组、解组的XmlAdapter

 * @author hoojo

 * @createDate 2011-4-25 下午05:03:18

 * @file MyAdetper.java

 * @package com.hoo.util

 * @project WebHttpUtils

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

public class MapAdapter extends XmlAdapter<MapElements[], Map<String, AccountBean>> {

    public MapElements[] marshal(Map<String, AccountBean> arg0) throws Exception {

        MapElements[] mapElements = new MapElements[arg0.size()];

 

        int i = 0;

        for (Map.Entry<String, AccountBean> entry : arg0.entrySet())

            mapElements[i++] = new MapElements(entry.getKey(), entry.getValue());

 

        return mapElements;

    }

 

    public Map<String, AccountBean> unmarshal(MapElements[] arg0) throws Exception {

        Map<String, AccountBean> r = new HashMap<String, AccountBean>();

        for (MapElements mapelement : arg0)

            r.put(mapelement.key, mapelement.value);

        return r;

    }

}

MapElements代码



package com.hoo.util;

 

import javax.xml.bind.annotation.XmlElement;

import com.hoo.entity.AccountBean;

 

/**

 * <b>function:</b> MapElements

 * @author hoojo

 * @createDate 2011-4-25 下午05:04:04

 * @file MyElements.java

 * @package com.hoo.util

 * @project WebHttpUtils

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

public class MapElements {

    @XmlElement

    public String key;

    

    @XmlElement

    public AccountBean value;

 

    @SuppressWarnings("unused")

    private MapElements() {

    } // Required by JAXB

 

    public MapElements(String key, AccountBean value) {

        this.key = key;

        this.value = value;

    }

}

在浏览器中请求:http://localhost:8080/SpringMVC4View/jaxb2/view/doMapXMLJaxb2.do

结果如下:



<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<mapBean><map><item><key>NO2</key><value><address>china</address>

<brithday><brithday>2011-11-22</brithday></brithday>

<email>tom@125.com</email><id>2</id><name>tom</name></value></item>

<item><key>NO1</key><value><address>北京</address><brithday><brithday>2010-11-22</brithday></brithday>

<email>email</email><id>1</id><name>jack</name></value></item></map>

</mapBean>

总结,如果你想将一些Java的基本类型转换成XML。那么你得创建一个带getter、setter方法的JavaBean。然后在Bean的getter方法进行相应的Annotation注解即可完成转换。

 

三、 利用xStream转换XML

1、 xStream可以轻易的将Java对象转换成XML、JSON,Spring整合利用xStream转换xml。需要添加xStream相关的xstream-1.3.1.jar包。 如果你对xStream不上很了解,你可以先阅读这篇文章:

For csblogs:http://www.cnblogs.com/hoojo/archive/2011/04/22/2025197.html

For csdn:http://blog.csdn.net/IBM_hoojo/archive/2011/04/22/6342386.aspx

2、 然后在dispatcher.xml中添加如下配置



<-- xml视图,XStreamMarshaller,可以转换任何形式的java对象,需要添加xStream jar包 -->

<bean name="xStreamMarshallingView" class="org.springframework.web.servlet.view.xml.MarshallingView">

    <property name="marshaller">

        <bean class="org.springframework.oxm.xstream.XStreamMarshaller">  

               <--  启用annotation -->

               <property name="autodetectAnnotations" value="true"/>  

               <-- 类名别名 -->

            <property name="aliases">

                <map>

                    <-- Account这个类的别名就变成了myBeans,那么转换后的xml中就是myBeans -->

                    <entry key="myBeans" value="com.hoo.entity.Account"/>

                </map>

            </property>

            <-- 基本属性别名 -->

            <property name="fieldAliases">

                <map>

                    <-- Account中的brithday这个属性 -->

                    <entry key="com.hoo.entity.Account.brithday" value="生日"/>

                </map>

            </property>

           </bean>  

    </property>

</bean>

上次配置的参数有注释描述,还要没有配置的参数。如:annotatedClass、annotatedClasses是当没有配置启用 annotation的时候,可以用这2个属性进行配置你指定的class启用annotation注解。streamDriver是配置驱动用的,默认 可以不要驱动,你可以配置DomDriver、JSON相关的驱动。encoding是设置编码,关于XStreamMarshaller还要更多的参数 配置和上面xStream 的博文中讲解的一样使用,只是通过配置,而博文中是直接在代码中写的。当然也可以通过annotation进行注解哦;如果你想了解更多xStream的 用法,请你仔细阅读:http://www.cnblogs.com/hoojo/archive/2011/04/22/2025197.html

3、 普通JavaBean转换XML



package com.hoo.controller;

 

import java.util.ArrayList;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import com.hoo.entity.Account;

import com.hoo.entity.AccountArray;

import com.hoo.entity.AccountBean;

import com.hoo.entity.Brithday;

import com.hoo.entity.DifferBean;

import com.hoo.entity.ListBean;

import com.hoo.entity.MapBean;

import com.hoo.entity.MoreBean;

import com.hoo.entity.User;

 

/**

 * <b>function:</b>Jaxb2MarshallingView 视图,利用Jaxb2进行Java对象到XML的转换技术

 * @author hoojo

 * @createDate 2011-4-27 下午03:20:23

 * @file Jaxb2MarshallingViewController.java

 * @package com.hoo.controller

 * @project SpringMVC4View

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

@Controller

@RequestMapping("/jaxb2/view")

public class Jaxb2MarshallingViewController {

    

    /*

     * MarshallingView Jaxb2Marshaller 需要配置转换成xml的java对象的Annotation

     */

    @RequestMapping("/doXMLJaxb2")

    public ModelAndView doXMLJaxb2View() {

        System.out.println("#################ViewController doXMLJaxb2View##################");

        ModelAndView mav = new ModelAndView("jaxb2MarshallingView");

        

        AccountBean bean = new AccountBean();

        bean.setAddress("address");

        bean.setEmail("email");

        bean.setId(1);

        bean.setName("haha");

        Brithday day = new Brithday();

        day.setBrithday("2010-11-22");

        bean.setBrithday(day);

        

        mav.addObject(bean);

        

        return mav;

    }

}

AccountBean上面的代码已经给出,这里就不重复了。值得说明的是xStream在ModelAndView中,直接用addObject 方法添加时,有时候出现一些不是我们转换的对象的信息,一般是BindingResult的xml信息。解决办法就是设置addObject的key。 Key设置为BindingResult.MODEL_KEY_PREFIX这样就可以了,代码上面已经给出。

在浏览器中请求:http://localhost:8080/SpringMVC4View/xStream/view/doXMLXStream.do

结果如下:

    
     <com.hoo.entity.AccountBean><id>1</id><name>haha</name><email>email</email><address>北京</address>
     <brithday><brithday>2010-11-22</brithday></brithday></com.hoo.entity.AccountBean>
    

4、 转换对象数组

代码如下:



/**

 * <b>function:</b>转换对象数组

 * @author hoojo

 * @createDate 2011-4-27 下午06:19:40

 * @return

 */

@RequestMapping("/doMoreXMLXStream")

public ModelAndView doMoreXMLXStreamView() {

    System.out.println("#################ViewController doMoreXMLXStreamView##################");

    ModelAndView mav = new ModelAndView("xStreamMarshallingView");    

    Account[] accs = new Account[2];

    Account bean = new Account();

    bean.setAddress("北京");

    bean.setEmail("email");

    bean.setId(1);

    bean.setName("haha");

    Brithday day = new Brithday();

    day.setBrithday("2010-11-22");

    bean.setBrithday(day);

    accs[0] = bean;

    

    bean = new Account();

    bean.setAddress("上海");

    bean.setEmail("email");

    bean.setId(1);

    bean.setName("haha");

    day = new Brithday();

    day.setBrithday("2010-11-22");

    bean.setBrithday(day);

    accs[1] = bean;

    mav.addObject(accs);

    return mav;

}

在WebBrowser中请求http://localhost:8080/SpringMVC4View/xStream/view/doMoreXMLXStream.do

结果如下:

<myBeans-array><myBeans><id>1</id><name>haha</name><email>email</email> <address>北京</address><生日><brithday>2010-11-22</brithday></生日></myBeans> <myBeans><id>1</id><name>haha</name><email>email</email><address>上海</address> <生日><brithday>2010-11-22</brithday></生日></myBeans></myBeans-array>

结果中的myBeans、生日就是在dispatcher配置文件中重命名的对象属性名称。

5、 转换Map集合



/**

 * <b>function:</b>转换Map对象

 * @author hoojo

 * @createDate 2011-4-27 下午06:19:48

 * @return

 */

@RequestMapping("/doDifferXMLXStream")

public ModelAndView doDifferXMLXStreamView() {

    System.out.println("#################ViewController doDifferXMLXStreamView##################");

    ModelAndView mav = new ModelAndView("xStreamMarshallingView");

    

    Account bean = new Account();

    bean.setAddress("广东");

    bean.setEmail("email");

    bean.setId(1);

    bean.setName("haha");

    Brithday day = new Brithday();

    day.setBrithday("2010-11-22");

    bean.setBrithday(day);

    

    User user = new User();

    user.setAddress("china GuangZhou");

    user.setAge(23);

    user.setBrithday(new Date());

    user.setName("jack");

    user.setSex(true);

    

    Map<String, Object> map = new HashMap<String, Object>();

    map.put("bean", bean);

    map.put("user", user);

    mav.addObject(map);

    return mav;

}

在WebBrowser中请求http://localhost:8080/SpringMVC4View/xStream/view/doDifferXMLXStream.do

结果如下:

    
     <map><entry>
     <string>bean</string><myBeans><id>1</id><name>haha</name><email>email</email><address>广东</address><生日><brithday>2010-11-22</brithday></生日></myBeans></entry><entry><string>user</string><com.hoo.entity.User><name>jack</name><age>23</age><sex>true</sex><address>china GuangZhou</address><brithday>2011-04-27 19:02:13.747 CST</brithday></com.hoo.entity.User></entry></map>
    

6、 转换List集合



/**

 * <b>function:</b>转换List对象

 * @author hoojo

 * @createDate 2011-4-27 下午06:20:02

 * @return

 */

@RequestMapping("/doListXMLXStream")

public ModelAndView doListXMLXStreamView() {

    System.out.println("#################ViewController doListXMLXStreamView##################");

    ModelAndView mav = new ModelAndView("xStreamMarshallingView");

    List<Object> beans = new ArrayList<Object>(); 

    for (int i = 0; i < 3; i++) {

        Account bean = new Account();

        bean.setAddress("北京#" + i);

        bean.setEmail("email" + i + "@12" + i + ".com");

        bean.setId(1 + i);

        bean.setName("haha#" + i);

        Brithday day = new Brithday();

        day.setBrithday("2010-11-2" + i);

        bean.setBrithday(day);

        beans.add(bean);

        

        User user = new User();

        user.setAddress("china GuangZhou 广州# " + i);

        user.setAge(23 + i);

        user.setBrithday(new Date());

        user.setName("jack#" + i);

        user.setSex(Boolean.parseBoolean(i + ""));

        beans.add(user);

    }

    

    mav.addObject(beans);

    return mav;

}

在WebBrowser中请求http://localhost:8080/SpringMVC4View/xStream/view/doListXMLXStream.do

结果如下:

    
     <list>
     <myBeans><id>1</id><name>haha#0</name><email>email0@120.com</email><address>北京#0</address><生日><brithday>2010-11-20</brithday></生日></myBeans><com.hoo.entity.User><name>jack#0</name><age>23</age><sex>false</sex><address>china GuangZhou 广州# 0</address><brithday>2011-04-27 19:08:40.106 CST</brithday></com.hoo.entity.User><myBeans><id>2</id><name>haha#1</name><email>email1@121.com</email><address>北京#1</address><生日><brithday>2010-11-21</brithday></生日></myBeans><com.hoo.entity.User><name>jack#1</name><age>24</age><sex>false</sex><address>china GuangZhou 广州# 1</address><brithday>2011-04-27 19:08:40.106 CST</brithday></com.hoo.entity.User><myBeans><id>3</id><name>haha#2</name><email>email2@122.com</email><address>北京#2</address><生日><brithday>2010-11-22</brithday></生日></myBeans><com.hoo.entity.User><name>jack#2</name><age>25</age><sex>false</sex><address>china GuangZhou 广州# 2</address><brithday>2011-04-27 19:08:40.106 CST</brithday></com.hoo.entity.User></list>
    

总结,xStream相对jaxb2要简单些。而且相对比较灵活,可以轻易的转换Java普通类型。

 

下次会介绍castor转换XML、jibx转换XML、Jackson转换JSON 以及自定义Jsonlib视图转换Json。

GitHub 加速计划 / js / json
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