XStream



1.引入需要的jar包，在pom.xml中配置依赖

1. <dependency>
2. <groupId>com.thoughtworks.xstream</groupId>
3. <artifactId>xstream</artifactId>
4. <version></version>
5. </dependency>

<dependency>
	<groupId>com.thoughtworks.xstream</groupId>
	<artifactId>xstream</artifactId>
	<version>1.4.2</version>
</dependency>

2.创建要转换的实例类，本文以简单的硬件信息为例

1. package com.ajita.xstream;
2. import com.thoughtworks.xstream.annotations.XStreamAlias;
3. import com.thoughtworks.xstream.annotations.XStreamAsAttribute;
4. @XStreamAlias("DiskInfo")
5. public class DiskInfo {
6. @XStreamAsAttribute
7. @XStreamAlias("diskName")
8. private String name;
9. private int totalSize;
10. private int avilableSize;
11. private int usedSize;
12. public String getName() {
13. return name;
14. }
15. public void setName(String name) {
16. this.name = name;
17. }
18. public int getTotleSize() {
19. return totalSize;
20. }
21. public void setTotleSize(int totleSize) {
22. this.totalSize = totleSize;
23. }
24. public int getAvilableSize() {
25. return avilableSize;
26. }
27. public void setAvilableSize(int avilableSize) {
28. this.avilableSize = avilableSize;
29. }
30. public int getUserSize() {
31. return usedSize;
32. }
33. public void setUserSize(int userSize) {
34. this.usedSize = userSize;
35. }
36. public String toString() {
37. StringBuilder sb = new StringBuilder();
38. sb.append(name + "\r\n");
39. sb.append("TotalSize:" + totalSize + "|Used Size:" + usedSize
40. + "|Available Size:" + avilableSize);
41. return sb.toString();
42. }
43. }
44. package com.ajita.xstream;
45. import java.util.List;
46. import com.thoughtworks.xstream.annotations.XStreamAlias;
47. @XStreamAlias("HardwareInfo")
48. public class HardwareInfo {
49. private String cpuInfo;
50. private String networkInfo;
51. private List<DiskInfo> diskInfos;
52. public String getCpuInfo() {
53. return cpuInfo;
54. }
55. public void setCpuInfo(String cpuInfo) {
56. this.cpuInfo = cpuInfo;
57. }
58. public String getNetworkInfo() {
59. return networkInfo;
60. }
61. public void setNetworkInfo(String networkInfo) {
62. this.networkInfo = networkInfo;
63. }
64. public List<DiskInfo> getDiskInfos() {
65. return diskInfos;
66. }
67. public void setDiskInfos(List<DiskInfo> diskInfos) {
68. this.diskInfos = diskInfos;
69. }
70. public String toString() {
71. StringBuilder sb = new StringBuilder();
72. sb.append(cpuInfo);
73. sb.append("\r\n");
74. sb.append(networkInfo);
75. sb.append("\r\n");
76. for (DiskInfo disk : diskInfos) {
77. sb.append(disk.toString());
78. sb.append("\r\n");
79. }
80. return sb.toString();
81. }
82. }

package com.ajita.xstream;

import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamAsAttribute;

@XStreamAlias("DiskInfo")
public class DiskInfo {
	@XStreamAsAttribute
	@XStreamAlias("diskName")
	private String name;
	private int totalSize;
	private int avilableSize;
	private int usedSize;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getTotleSize() {
		return totalSize;
	}

	public void setTotleSize(int totleSize) {
		this.totalSize = totleSize;
	}

	public int getAvilableSize() {
		return avilableSize;
	}

	public void setAvilableSize(int avilableSize) {
		this.avilableSize = avilableSize;
	}

	public int getUserSize() {
		return usedSize;
	}

	public void setUserSize(int userSize) {
		this.usedSize = userSize;
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(name + "\r\n");
		sb.append("TotalSize:" + totalSize + "|Used Size:" + usedSize
				+ "|Available Size:" + avilableSize);
		return sb.toString();
	}
}

package com.ajita.xstream;

import java.util.List;

import com.thoughtworks.xstream.annotations.XStreamAlias;

@XStreamAlias("HardwareInfo")
public class HardwareInfo {
	private String cpuInfo;
	private String networkInfo;
	private List<DiskInfo> diskInfos;

	public String getCpuInfo() {
		return cpuInfo;
	}

	public void setCpuInfo(String cpuInfo) {
		this.cpuInfo = cpuInfo;
	}

	public String getNetworkInfo() {
		return networkInfo;
	}

	public void setNetworkInfo(String networkInfo) {
		this.networkInfo = networkInfo;
	}

	public List<DiskInfo> getDiskInfos() {
		return diskInfos;
	}

	public void setDiskInfos(List<DiskInfo> diskInfos) {
		this.diskInfos = diskInfos;
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		sb.append(cpuInfo);
		sb.append("\r\n");
		sb.append(networkInfo);
		sb.append("\r\n");
		for (DiskInfo disk : diskInfos) {
			sb.append(disk.toString());
			sb.append("\r\n");
		}
		return sb.toString();
	}
}

3.新建测试代码

1. package com.ajita.xstream;
2. import java.util.ArrayList;
3. import com.thoughtworks.xstream.XStream;
4. public class TestXStream {
5. /**
6. * @param args
7. */
8. public static void main(String[] args) {
9. DiskInfo disk1 = new DiskInfo();
10. disk1.setName("D:\\");
11. disk1.setTotleSize();
12. disk1.setUserSize();
13. disk1.setAvilableSize();
14. DiskInfo disk2 = new DiskInfo();
15. disk2.setName("E:\\");
16. disk2.setTotleSize();
17. disk2.setUserSize();
18. disk2.setAvilableSize();
19. ArrayList<DiskInfo> diskInfos = new ArrayList<DiskInfo>();
20. diskInfos.add(disk1);
21. diskInfos.add(disk2);
22. HardwareInfo hwInfo = new HardwareInfo();
23. hwInfo.setCpuInfo("cpu info is ...");
24. hwInfo.setNetworkInfo("network info is ...");
25. hwInfo.setDiskInfos(diskInfos);
26. XStream xStream = new XStream();
27. xStream.autodetectAnnotations(true);
28. String xml = xStream.toXML(hwInfo);
29. System.out.println(xml);
30. HardwareInfo info2 = (HardwareInfo) xStream.fromXML(xml);
31. System.out.println(info2);
32. }
33. }

package com.ajita.xstream;

import java.util.ArrayList;

import com.thoughtworks.xstream.XStream;

public class TestXStream {
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		DiskInfo disk1 = new DiskInfo();
		disk1.setName("D:\\");
		disk1.setTotleSize(100);
		disk1.setUserSize(20);
		disk1.setAvilableSize(80);
		DiskInfo disk2 = new DiskInfo();
		disk2.setName("E:\\");
		disk2.setTotleSize(200);
		disk2.setUserSize(40);
		disk2.setAvilableSize(160);

		ArrayList<DiskInfo> diskInfos = new ArrayList<DiskInfo>();
		diskInfos.add(disk1);
		diskInfos.add(disk2);

		HardwareInfo hwInfo = new HardwareInfo();
		hwInfo.setCpuInfo("cpu info is ...");
		hwInfo.setNetworkInfo("network info is ...");
		hwInfo.setDiskInfos(diskInfos);

		XStream xStream = new XStream();
		xStream.autodetectAnnotations(true);
		String xml = xStream.toXML(hwInfo);
		System.out.println(xml);

		HardwareInfo info2 = (HardwareInfo) xStream.fromXML(xml);
		System.out.println(info2);
	}

}

输出如下：

1. <HardwareInfo>
2. <cpuInfo>cpu info is ...</cpuInfo>
3. <networkInfo>network info is ...</networkInfo>
4. <diskInfos>
5. <DiskInfo diskName="D:\">
6. <totalSize></totalSize>
7. <avilableSize></avilableSize>
8. <usedSize></usedSize>
9. </DiskInfo>
10. <DiskInfo diskName="E:\">
11. <totalSize></totalSize>
12. <avilableSize></avilableSize>
13. <usedSize></usedSize>
14. </DiskInfo>
15. </diskInfos>
16. </HardwareInfo>
17. cpu info is ...
18. network info is ...
19. D:\
20. TotalSize:|Used Size:|Available Size:
21. E:\
22. TotalSize:|Used Size:|Available Size:

<HardwareInfo>
  <cpuInfo>cpu info is ...</cpuInfo>
  <networkInfo>network info is ...</networkInfo>
  <diskInfos>
    <DiskInfo diskName="D:\">
      <totalSize>100</totalSize>
      <avilableSize>80</avilableSize>
      <usedSize>20</usedSize>
    </DiskInfo>
    <DiskInfo diskName="E:\">
      <totalSize>200</totalSize>
      <avilableSize>160</avilableSize>
      <usedSize>40</usedSize>
    </DiskInfo>
  </diskInfos>
</HardwareInfo>
cpu info is ...
network info is ...
D:\
TotalSize:100|Used Size:20|Available Size:80
E:\
TotalSize:200|Used Size:40|Available Size:160

4.常用XStream注解

1）@XStreamAlias注解可在类与属性上使用设置名称,相当于: xstream.alias("blog", Blog.class);

2）@XStreamImplicit去集合节点名:相当于 xstream.addImplicitCollection(Blog.class, "entries");


3） @XStreamConverter(SingleValueCalendarConverter.class)

    private Calendar createdTime = new GregorianCalendar();