xstream使用

一、新建实体bean,将xml文件转换为ThdReport与image列表

package com.etoak.bean;

import java.util.List;

public class ThdReport {
	private Long id;
	private Short type;
	private String sn;
	private String title;
	private String name;
	private String gender;
	private String examDate;
	private String birthday;
	private Long patientId;
	private String conclusion;	//Summary检查结果
	private String conclusionDesc;//Description检查描述
	private String operatorPhysician;
	private String performingPhysician;
	private String referringPhysician;
	private String age;
	private List images;
	
	public List getImages() {
		return images;
	}
	public void setImages(List images) {
		images = images;
	}
	public Long getId() {
		return id;
	}
	public void setId(Long id) {
		this.id = id;
	}
	public Short getType() {
		return type;
	}
	public void setType(Short type) {
		this.type = type;
	}
	public String getSn() {
		return sn;
	}
	public void setSn(String sn) {
		this.sn = sn;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getGender() {
		return gender;
	}
	public void setGender(String gender) {
		this.gender = gender;
	}
	public String getExamDate() {
		return examDate;
	}
	public void setExamDate(String examDate) {
		this.examDate = examDate;
	}
	public String getBirthday() {
		return birthday;
	}
	public void setBirthday(String birthday) {
		this.birthday = birthday;
	}
	public Long getPatientId() {
		return patientId;
	}
	public void setPatientId(Long patientId) {
		this.patientId = patientId;
	}
	public String getConclusion() {
		return conclusion;
	}
	public void setConclusion(String conclusion) {
		this.conclusion = conclusion;
	}
	public String getConclusionDesc() {
		return conclusionDesc;
	}
	public void setConclusionDesc(String conclusionDesc) {
		this.conclusionDesc = conclusionDesc;
	}
	public String getOperatorPhysician() {
		return operatorPhysician;
	}
	public void setOperatorPhysician(String operatorPhysician) {
		this.operatorPhysician = operatorPhysician;
	}
	public String getPerformingPhysician() {
		return performingPhysician;
	}
	public void setPerformingPhysician(String performingPhysician) {
		this.performingPhysician = performingPhysician;
	}
	public String getReferringPhysician() {
		return referringPhysician;
	}
	public void setReferringPhysician(String referringPhysician) {
		this.referringPhysician = referringPhysician;
	}
	public String getAge() {
		return age;
	}
	public void setAge(String age) {
		this.age = age;
	}
	@Override
	public String toString() {
		return "ThdReport [id=" + id + ", type=" + type + ", sn=" + sn
				+ ", title=" + title + ", name=" + name + ", gender=" + gender
				+ ", examDate=" + examDate + ", birthday=" + birthday
				+ ", patientId=" + patientId + ", conclusion=" + conclusion
				+ ", conclusionDesc=" + conclusionDesc + ", operatorPhysician="
				+ operatorPhysician + ", performingPhysician="
				+ performingPhysician + ", referringPhysician="
				+ referringPhysician + ", age=" + age + ", Images=" + images
				+ "]";
	}
	
}

package com.etoak.bean;

public class Image {
	private String path;
	private String type;
	private String content;
	public String getPath() {
		return path;
	}
	public void setPath(String path) {
		this.path = path;
	}
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
	public String getContent() {
		return content;
	}
	public void setContent(String content) {
		this.content = content;
	}
	@Override
	public String toString() {
		return "Image [path=" + path + ", type=" + type + ", content="
				+ content + "]";
	}
	
	
}

二、编写Image转换器，因为xml中的Image中既有属性又有内容

package com.etoak.test;

import com.etoak.bean.Image;
import com.thoughtworks.xstream.converters.Converter;
import com.thoughtworks.xstream.converters.MarshallingContext;
import com.thoughtworks.xstream.converters.UnmarshallingContext;
import com.thoughtworks.xstream.io.HierarchicalStreamReader;
import com.thoughtworks.xstream.io.HierarchicalStreamWriter;

public class XStreamExpandConverter implements Converter{

	 @Override  
     public boolean canConvert(Class type) {  
         return type.equals(Image.class);  
     }  
     @Override  
     public Object unmarshal(HierarchicalStreamReader reader,  
             UnmarshallingContext context) {  
     	Image s = new Image();  
         s.setPath(reader.getAttribute("Path"));
         s.setType(reader.getAttribute("Type"));
         s.setContent(reader.getValue());  
         return s;  
     }  
     @Override  
     public void marshal(Object source, HierarchicalStreamWriter writer,  
             MarshallingContext context) {  
     	Image status = (Image) source;  
         writer.addAttribute("Path", status.getPath());  
         writer.addAttribute("Type", status.getType());  
         writer.setValue(status.getContent());  
     }  

}

三、编写日期转换器，因为日期在xstream中不能直接转换为yyyy-MM-dd hh:mm:ss格式

package com.etoak.test;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.thoughtworks.xstream.converters.ConversionException;
import com.thoughtworks.xstream.converters.basic.AbstractSingleValueConverter;

public class XStreamYMDDateConverter extends AbstractSingleValueConverter {  
    
    private static final DateFormat DEFAULT_DATEFORMAT = new SimpleDateFormat(  
            "yyyy-MM-dd hh:mm:ss");  
  
    @Override  
    public boolean canConvert(Class type) {  
        return type.equals(Date.class);  
    }  
  
    @Override  
    public Object fromString(String str) {  
        // 这里将字符串转换成日期  
        try {  
            return DEFAULT_DATEFORMAT.parseObject(str);  
        } catch (ParseException e) {  
            e.printStackTrace();  
        }  
        throw new ConversionException("Cannot parse datedd " + str);  
    }  
  
    @Override  
    public String toString(Object obj) {  
        // 这里将日期转换成字符串  
        return DEFAULT_DATEFORMAT.format((Date) obj);  
    }  
  
}  

四、编写测试类

package com.etoak.test;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.List;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.etoak.bean.Image;
import com.etoak.bean.ThdReport;
import com.thoughtworks.xstream.XStream;

public class Test {
	private XStream xstream = null;
	private ThdReport report = null;
	@org.junit.Test
	public void readXML4InputStream() {

		try {
			xstream = new XStream();
			String s = ""
					+""
					+""
					+"320525198109110058"
					+"吴志平"
					+"true"
					+"0"
					+"16-01-08 18:25:48"
					+"81-09-11 00:00:00"
					+"动脉血管内膜回声增强，增厚，有中断现象。于血管前、后壁可见斑快回声（１，为软斑呈弱回声或等回声２，为硬斑回声增强，后方有声影），团块回声附着于血管壁上。"
					+"彩色血流于动脉处出现充盈缺损，血流变细，色彩明显。于狭窄的近端有明亮及增宽的高速血流。提示有侧支循环建立。　　"
					+"频谱多普勒于狭窄处取样收缩期峰值加快达  cm/s，舒张期反向血流消失频谱增宽，病变远端动脉，峰值速度、平均速度均减慢，呈低幅、单相血流。"
					+"频谱：有峰值后移现象"
					+"
动脉管壁正常结构消失，呈不规则向心性增厚，最厚达mm，回声不均匀，管腔狭窄，最窄处为 mm。"
					+"彩色血流于动脉处变细，出现五彩镶嵌或混叠现象（或彩色血流中断）。"
					+"频谱多普勒于病变处动脉取样，血流速度明显加快，频带增宽，频窗减小（或消失），狭窄远端血流频谱为低阻力、低速，单相血流，"
					+"动脉呈梭状（或囊状）扩张，内壁回声增强，不光滑。动脉瘤长：mm，宽：mm，开口mm。彩色血流于瘤体内呈红、蓝各半血流（旋流），此血流与动脉干内血流相连
"
					+""
					+"VINNOTester"
					+"VINNOTester"
					+""
					+"iVBORw0KGgoAAAANSUhEUgOVbWd//f2f671nr6"
					+"iVBORw0KGgoAAAANSUhEUgAABOEAAALqCAYAAABzMk"
					+"iVBORw0KCCEML/BxnYyYrfKXeUAAAAAElFTkSuQmCC"
					+"iVBORw0KGgoAAAANSUhEUgAAgT0r9P/ug49yMtk8jAAAAAElFTkSuQmCC"
					+""
					+"";
			failRed("---------ObjectInputStream## XML --> javaObject---------");
                        xstream.alias("ReportInfo",ThdReport.class);
			xstream.aliasField("Title", ThdReport.class, "title");
			xstream.aliasField("Name", ThdReport.class, "name");
			xstream.aliasField("Gender", ThdReport.class, "gender");
			xstream.aliasField("ExamDate", ThdReport.class, "examDate");
			xstream.aliasField("Birthday", ThdReport.class, "birthday");
			xstream.aliasField("PatientId", ThdReport.class, "patientId");
			xstream.aliasField("Summary", ThdReport.class, "conclusion");
			xstream.aliasField("Description", ThdReport.class, "conclusionDesc");
			xstream.aliasField("OperatorPhysician", ThdReport.class, "operatorPhysician");
			xstream.aliasField("PerformingPhysician", ThdReport.class, "performingPhysician");
			xstream.aliasField("ReferringPhysician", ThdReport.class, "referringPhysician");
			xstream.aliasField("Age", ThdReport.class, "age");
			xstream.aliasField("Images", ThdReport.class, "images");
			xstream.alias("Images", List.class);
			xstream.alias("Image", Image.class);
			xstream.registerConverter(new XStreamYMDDateConverter());
			xstream.registerConverter(new XStreamExpandConverter());
			ThdReport report = (ThdReport) xstream.fromXML(s);
			System.out.println(report);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public final void fail(String string) {
		System.out.println(string);
	}
	public final void failRed(String string) {
		System.err.println(string);
	}
}

五、简单介绍

alias(String 别名,Class class)方法给转换类起个别名，当xml中要转换为类的标签和类名不一致(包+类名都一致才为一致)时使用
aliasField(String 别名, Class class, String 属性名)

registerConverter(new 转换器)

六、下面是别人的xStream介绍可以参考下

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

http://www.blogjava.net/DLevin/archive/2012/11/30/392240.html

xstream将xml转换为JavaBean

XStream解析和读取xml报文

XStream处理既有属性又有值的xml节点

xstream转换Map和List