Jaxb处理obj(泛型)<--->xml

　　最近调试要求xml报文交互项目，之前就应用过Jaxb来处理object互转xml，只是此次项目中接口报文较多，且相似，所以将过去的代码要重新封装重构下。

如下报文，外层不变，只有body内容不固定，所以用到泛型加以控制：

<?xml version="1.0" encoding="UTF-8"?>
<Document>
    <Request>
        <Head>
            <Version>Version</Version>
            <orgId>orgId</CertId>
        </Head>
        <Body>
            <infoList>
                <info>
                    <name>name</name>
                    <dept>dept</dept>
                </info>
                <info>
                    <name>111111111</name>
                </info>
            </infoList>
        </Body>
    </Request>
</Document>

实体Document

package com.test;
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "",propOrder = {
    "request"
})
@XmlRootElement(name = "Document")
public class Document {
	
    @XmlElements({
	@XmlElement(name = "Request",type = com.test.intfc.Request.class)
    })
    protected BaseRequest<? extends BaseBody> request;
 
    setter()/getter()
}

实体BaseRequest

package com.test;
 
@XmlTransient
public abstract class BaseRequest<T extends BaseBody> {
 
    protected Head head;
    protected T body;
    
    public abstract Head getHead();
    public abstract void setHead(Head value);
    public abstract T getBody();
    public abstract void setBody(T value);
}

实体Head......略

实体Basebody

package com.test;
 
@XmlTransient
public abstract class BaseBody {}

实体Request

package com.test.intfc;
 
@XmlRootElement(name = "Request")
@XmlAccessorType(XmlAccessType.PROPERTY)
@XmlType(name = "",propOrder = { "head","body" })
public class Request extends BaseRequest<Body> {
 
	@XmlElement(name = "Head",required = true)
	@Override
	public Head getHead() {
		return head;
	}
 
	@Override
	public void setHead(Head value) {
		this.head = value;
	}
 
	@XmlElement(name = "Body",required = true)
	@Override
	public Body getBody() {
		return body;
	}
 
	@Override
	public void setBody(Body value) {
		this.body = value;
	}
}

实体Body

package com.test.intfc;
 
@XmlRootElement(name = "Body")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "",propOrder = {
    "name","dept"
})
public class Body extends BaseBody {
    // 简写....
    @XmlElement(name = "name",required = true)
    protected String name;
    
    @XmlElement(name = "dept",required = true)
    protected String dept;
    
    ...setter()/getter()
}

测试

package com.test;
 
public class Test {
     public static void main(String[] args) {
		......
 
		Request req = new Request();
		Document doc = new Document();
		doc.setRequest(req);
		JaxbBinder reqBinder = new JaxbBinder(Document.class);
 
		String xmlReq = reqBinder.toXml(doc,true);
 
    }
}

JaxbBinder从网上搜，一堆堆的例子。。。。

xml --> xsd --> Object 方式快速生成的

命令如：$ xjc -d . -p com.test ./example.xsd

生成的Object实体需要自己按上面的修改，注意“@注解”的应用，否则将报异常：[javax.xml.bind.JAXBException：类 org.test.******。或其任何超类是已知此上下文。]

Jaxb处理obj(泛型)<--->xml

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