XmlBuilder读取Xml文件并转为java对象

源xml文件：

创建接受对象类：

package com.demo.weather.vo;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;

/**
 * City.
 * 
 * @since 1.0.0 2017年11月23日
 * @author Way Lau 
 */
@XmlRootElement(name = "d")
@XmlAccessorType(XmlAccessType.FIELD)
public class City {
	@XmlAttribute(name = "d1")
	private String cityId;
	
	@XmlAttribute(name = "d2")
	private String cityName;
	
	@XmlAttribute(name = "d3")
	private String cityCode;
	
	@XmlAttribute(name = "d4")
	private String province;

	public String getCityId() {
		return cityId;
	}

	public void setCityId(String cityId) {
		this.cityId = cityId;
	}

	public String getCityName() {
		return cityName;
	}

	public void setCityName(String cityName) {
		this.cityName = cityName;
	}

	public String getCityCode() {
		return cityCode;
	}

	public void setCityCode(String cityCode) {
		this.cityCode = cityCode;
	}

	public String getProvince() {
		return province;
	}

	public void setProvince(String province) {
		this.province = province;
	}
}

package com.demo.weather.vo;

import java.util.List;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

/**
 * City List.
 * 
 * @since 1.0.0 2017年11月23日
 * @author Way Lau 
 */
@XmlRootElement(name = "c")
@XmlAccessorType(XmlAccessType.FIELD)
public class CityList {
	@XmlElement(name = "d")
	private List cityList;

	public List getCityList() {
		return cityList;
	}

	public void setCityList(List cityList) {
		this.cityList = cityList;
	}
}


配置类 配置类 

package com.demo.weather.util;

import java.io.Reader;
import java.io.StringReader;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;

/**
 * Xml Builder.
 * 
 * @since 1.0.0 2017年11月23日
 * @author Way Lau 
 */
public class XmlBuilder {

	/**
	 * 将XML转为指定的POJO
	 * @param clazz
	 * @param xmlStr
	 * @return
	 * @throws Exception
	 */
	public static Object xmlStrToOject(Class clazz, String xmlStr) throws Exception {
		Object xmlObject = null;
		Reader reader = null;
		JAXBContext context = JAXBContext.newInstance(clazz);
		
		// XML 转为对象的接口
		Unmarshaller unmarshaller = context.createUnmarshaller();
		
		reader = new StringReader(xmlStr);
		xmlObject = unmarshaller.unmarshal(reader);
		
		if (null != reader) {
			reader.close();
		}
		
		return xmlObject;
	}
}



调用读取，返回对象 
调用读取，返回对象 

package com.demo.weather.service.Impl;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.List;

import com.demo.weather.service.CityDataService;
import com.demo.weather.util.XmlBuilder;
import com.demo.weather.vo.City;
import com.demo.weather.vo.CityList;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.stereotype.Service;


/**
 * City Data Service.
 * 
 * @since 1.0.0 2017年11月23日
 * @author Way Lau 
 */
@Service
public class CityDataServiceImpl implements CityDataService {

	@Override
	public List listCity() throws Exception {
		// 读取XML文件
		Resource resource = new ClassPathResource("static/citylist.xml");
		BufferedReader br = new BufferedReader(new InputStreamReader(resource.getInputStream(), "utf-8"));
		StringBuffer buffer = new StringBuffer();
		String line = "";
		
		while ((line = br.readLine()) !=null) {
			buffer.append(line);
		}
		
		br.close();
		
		// XML转为Java对象
		CityList cityList = (CityList)XmlBuilder.xmlStrToOject(CityList.class, buffer.toString());
		return cityList.getCityList();
	}

}

springboot项目中使用的，根据读取的xml中的城市id，获取天气数据json存入redis中

完整内容请参考：http://blog.maptoface.com/post/32