SpringMVC处理XML格式的数据

1.搭建SpringMVC+spring环境

2.web.xml，Springmvc-config.xml。springMVC提供了处理xml格式请求响应的HttpMessageConverter,springMVC默认使用Jaxb2RootElementHttpMessageConverter,通过

JAXB2读写XML消息，并将请求信息转换到注解XMLRootElement和XmlType作用的类中。

<?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:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd     
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-4.2.xsd">
        
    <!-- spring可以自动去扫描base-pack下面的包或者子包下面的java文件，
        如果扫描到有Spring的相关注解的类，则把这些类注册为Spring的bean -->
    <context:component-scan base-package="com.moon.controller"/>
    <!-- 设置配置方案  -->
    <mvc:annotation-driven/>
    <!-- 使用默认的Servlet来响应静态文件 -->
    <mvc:default-servlet-handler/>
    

    <!-- 视图解析器  -->
     <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
        <!-- 前缀 -->
        <property name="prefix">
            <value>/WEB-INF/content/</value>
        </property>
        <!-- 后缀 -->
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>
    
</beans>

3.实体类

package com.moon.domain;

import javax.xml.bind.annotation.XmlRootElement;

import com.sun.xml.internal.txw2.annotation.XmlElement;

@XmlRootElement
public class Book {
    private int id;
    private String author;
    private String name;
    public int getId() {
        return id;
    }
    @XmlElement
    public void setId(int id) {
        this.id = id;
    }
    public String getAuthor() {
        return author;
    }
    @XmlElement
    public void setAuthor(String author) {
        this.author = author;
    }
    public String getName() {
        return name;
    }
    @XmlElement
    public void setName(String name) {
        this.name = name;
    }
    
}

4.book.xml

<?xml version="1.0" encoding="UTF-8"?>
<book>
    <id>1</id>
    <name>balckmaba</name>
    <author>menbbo</author>
</book>

5.controller层@Controllerpublic class BookController {

//@RequestBody Book book会将传递的xml数据自动绑定到Book对象
    @RequestMapping(value="/sendxml",method=RequestMethod.POST)
    public void sendXml(@RequestBody Book book){
        System.out.println(book.getId());
        System.out.println(book.getAuthor());
    }

@RequestMapping(value="/readxml") //@ResponseBody会自动将Book对象转换成xml数据返回。
public @ResponseBody Book readXml() throws Exception{
//通过JAXBContext的newinstance方法，传入一个class就可以获得一个上下文
JAXBContext context = JAXBContext.newInstance(Book.class);
//创建一个unmarshaller对象
Unmarshaller unmarshaller = context.createUnmarshaller();
InputStream in = this.getClass().getResourceAsStream("/Book.xml");
//Unmarshaller对象的unmarshal方法可以将xml转换成java对象
Book book = (Book) unmarshaller.unmarshal(in);
return book;
}

6.view层

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery-1.11.0.min.js"></script>
<script type="text/javascript" src="js/json2.js"></script>
<script type="text/javascript">
    $(document).ready(function(){
        sendXml();
　　　　　　readXml();
    });
    function sendXml(){
        var xmlData = "<?xml version="1.0" encoding="UTF-8"?><book><id>1</id><name>crazy</name><author>menbbo</author> </book>";
        $.ajax( "${pageContext.request.contextPath}/sendxml",
                {
                    type:"POST",
                    contentType:"application/xml",
                    data:xmlData,
                    async:true
                }
        
        );
    }

</script>
</head>
<body>

</body>
</html>