cxf Map参数,cxf webservice复杂参数

cxf Map参数,cxf webservice复杂参数

 

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©Copyright 蕃薯耀 2018年5月18日

http://fanshuyao.iteye.com/

 

一、问题描述:

cxf 的服务方法中,是不能使用java.util.Map作为参数的,因为本身不支持转换

 

二、解决方案

1、自定义对象实体参数,然后再通过自定义适配器进行转换,该适配器需要继承XmlAdapter类,实现里面2个方法,如下:

 

public class RowImplAdapter extends XmlAdapter{
	
	@Override
	public RowImpl unmarshal(AdapterData adapterData) throws Exception {
		RowImpl rowImpl = new RowImpl();
		List entities = adapterData.getEntities();
		for (AdapterEntity adapterEntity : entities) {
			rowImpl.addColumn(adapterEntity.getKey(), adapterEntity.getValue());
		}
		return rowImpl;
	}

	@Override
	public AdapterData marshal(RowImpl rowImpl) throws Exception {
		AdapterData adapterData = new AdapterData();
		@SuppressWarnings("unchecked")
		Set> set = rowImpl.entrySet();
		for (Map.Entry entry : set) {
			adapterData.getEntities().add(new AdapterEntity(entry.getKey(), entry.getValue()));
		}
		return adapterData;
	}
	
}
 

 

AdapterData:

 

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

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlType;

@XmlType(name="AdapterData")
@XmlAccessorType(XmlAccessType.FIELD)
public class AdapterData {
	private List entities = new ArrayList();

	public List getEntities() {
		return entities;
	}

	public void setEntities(List entities) {
		this.entities = entities;
	}
	
}
 

 

AdapterEntity:(其实这个实体就是仿照Map的键值对形式)

 

public class AdapterEntity{
	private String key;
	private Object value;
	public AdapterEntity() {
		super();
	}
	public AdapterEntity(String key, Object value) {
		super();
		this.key = key;
		this.value = value;
	}
	
	public String getKey() {
		return key;
	}
	public void setKey(String key) {
		this.key = key;
	}
	public Object getValue() {
		return value;
	}
	public void setValue(Object value) {
		this.value = value;
	}

}
 

 

2、webservice服务方法需要在转换的参数添加一个注解(@XmlJavaTypeAdapter),如下

 这个注解是加在接口的方法上,不是在实体的方法。

@WebMethod (operationName="xxx")
	public String xxx(@WebParam @XmlJavaTypeAdapter(RowImplAdapter.class) RowImpl rowImpl) throws Exception; 

 

3、客户端使用JaxWsDynamicClientFactory 调用

public void findPlaceNameList(HttpServletRequest request,HttpServletResponse response) throws Exception{
		String result = "{}";
		try {
			Row row = parseRequestParametersToRow(request);
			
			Properties  prop = PropertiesUtils.read("placeNameServerURL.properties");
			String ghyw_url = PropertiesUtils.readKeyValue(prop, "ghyw_url");
			String webservice_prefix = PropertiesUtils.readKeyValue(prop, "webservice_prefix");
			String webservice_url = PropertiesUtils.readKeyValue(prop, "webservice_url");
			
			JaxWsDynamicClientFactory clientFactory = JaxWsDynamicClientFactory.newInstance();
			Client client = clientFactory.createClient(ghyw_url + webservice_prefix +webservice_url);
			Object[] results = client.invoke("webservice方法名", CxfAdapterUtils.rowToAdapterData(row));
			if(results != null){
				result = (String) results[0];
				System.out.println("result="+result);
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally{
			writeJson(response, result);
		}
	}

 

 4、客户端调用时,参数需要转换,即把Row对象转换成AdapterData对象,然后再传过去

CxfAdapterUtils.rowToAdapterData(row)对应的工具类,如下:

import java.util.Map;
import java.util.Set;

import com.plan.commons.Row;
import com.plan.commons.RowImpl;

/**
 * cxf 适配器工具 类
 *
 */
public class CxfAdapterUtils {

	/**
	 * 将Row转换成AdapterData对象
	 * @param row
	 * @return
	 */
	public static AdapterData rowToAdapterData(Row row){
		AdapterData adapterData = new AdapterData();
		@SuppressWarnings("unchecked")
		Set> set = row.entrySet();
		for (Map.Entry entry : set) {
			adapterData.getEntities().add(new AdapterEntity(entry.getKey(), entry.getValue()));
		}
		return adapterData;
	};
}

 

 

三、总结

其实这样转换挺复杂的,感觉吃力不讨好。

个人觉得还是使用json工具类,把需要传递过去的复杂对象转换成json后,然后以字符串的形式传递过去,服务端通过json工具再解析成对象,这样方便很多,也不用太折腾。

 

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©Copyright 蕃薯耀 2018年5月18日

http://fanshuyao.iteye.com/

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