jaxb的实例 java解析xml转成javabean

代码

public class CMSVersion {

	private CMSVersion() {
	}

	private static Logger log = LoggerFactory.getLogger(CMSVersion.class);

	private static Root root = null;

	static {
		try {
			JAXBContext jaxbContext = JAXBContext.newInstance(Root.class);
			Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
			root = (Root) jaxbUnmarshaller.unmarshal(Root.class
					.getClassLoader().getResourceAsStream("cmsversion.xml"));
		} catch (Exception e) {
			log.error("通过jaxb解析xml为javaBean报错-------------------------" + e);
		}
	}

	public static Map getCMSVersion(String keyName,
			String platformName, String versionNumber) {
		log.debug("keyName-------------------------" + keyName);
		log.debug("platformName-------------------------" + platformName);
		log.debug("versionNumber-------------------------" + versionNumber);
		try {
			if (StringUtils.isNotEmpty(keyName)
					&& StringUtils.isNotEmpty(platformName)
					&& StringUtils.isNotEmpty(versionNumber)) {
				if (null != root) {
					// 1.获取key对象
					KeyProms key = getKey(keyName);
					log.debug("key-------------------------" + key);
					if (null != key) {
						// 2.获取平台对象
						Platform platform = getPlatform(key, platformName);
						log.debug("platform-------------------------"
								+ platform);
						if (null != platform) {
							// 3.获取符合的版本
							Version version = getVersion(platform,
									versionNumber);
							log.debug("version-------------------------"
									+ version);
							if (null != version) {
								return getContent(version);
							}
						}
					}
				}
			}
		} catch (Exception e) {
			log.error("返回该版本号下面的所有信息报错-------------------------" + e);
		}
		return null;
	}

	private static KeyProms getKey(String keyName) {
		List keyList = root.getKeyPromsList();
		if (null != keyList && keyList.size() > 0) {
			for (KeyProms key : keyList) {
				if (keyName.equals(key.getName())) {
					return key;
				}
			}
		}
		return null;

	}

	private static Platform getPlatform(KeyProms key, String platformName) {
		List platformList = key.getPlatform();
		if (null != platformList && platformList.size() > 0) {
			for (Platform platform : platformList) {
				if (platformName.equals(platform.getName())) {
					return platform;
				}
			}
		}
		return null;

	}

	private static Version getVersion(Platform platform, String versionNumber) {
		List versionList = platform.getVersion();
		if (null != versionList && versionList.size() > 0) {
			int currentVersion = Integer.valueOf(versionNumber.split("\\.")[0]);
			for (Version version : versionList) {
				String versionNumberTemp = version.getVersionNumber();
				if (StringUtils.isNotEmpty(versionNumberTemp)) {
					String[] versionNumberArray = versionNumberTemp.substring(
							1, versionNumberTemp.length() - 1).split("-");
					String lowStr = versionNumberArray[0];
					String highStr = versionNumberArray.length == 1 ? ""
							: versionNumberArray[1];
					int low = "".equals(lowStr) ? 0 : Integer.valueOf(lowStr
							.split("\\.")[0]);
					int high = "".equals(highStr) ? 0 : Integer.valueOf(highStr
							.split("\\.")[0]);
					// 版本以上
					if (high == 0) {
						if (currentVersion >= low) {
							return version;
						}
					}
					// 版本以下
					if (low == 0) {
						if (currentVersion <= high) {
							return version;
						}
					}
					// 版本之间
					if (high != 0 && low != 0) {
						if (currentVersion <= high && low <= currentVersion) {
							return version;
						}
					}
				}
			}
		}
		return null;
	}

	private static Map getContent(Version version) {
		Map map = null;
		List entryList = version.getEntry();
		if (null != entryList && entryList.size() > 0) {
			map = new LinkedHashMap();
			for (Entry entry : entryList) {
				map.put(entry.getTempletCode(), entry.getTempletVerson());
			}
		}
		log.debug("content-------------------------" + map);
		return map;
	}
}

public class Entry {

	private String templetCode;

	private String templetVerson;

	@XmlAttribute
	public String getTempletCode() {
		return templetCode;
	}

	public void setTempletCode(String templetCode) {
		this.templetCode = templetCode;
	}

	@XmlAttribute
	public String getTempletVerson() {
		return templetVerson;
	}

	public void setTempletVerson(String templetVerson) {
		this.templetVerson = templetVerson;
	}

	@Override
	public String toString() {
		return "Entry [templetCode=" + templetCode + ", templetVerson="
				+ templetVerson + "]";
	}

}

public class KeyProms {

	private String name;

	private List platform;

	@XmlAttribute
	public String getName() {
		return name;
	}

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

	@XmlElement
	public List getPlatform() {
		return platform;
	}

	public void setPlatform(List platform) {
		this.platform = platform;
	}

	@Override
	public String toString() {
		return "Key [name=" + name + ", platform=" + platform + "]";
	}

}

public class Platform {

	private String name;

	private List version;

	@XmlAttribute
	public String getName() {
		return name;
	}

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

	@XmlElement
	public List getVersion() {
		return version;
	}

	public void setVersion(List version) {
		this.version = version;
	}

	@Override
	public String toString() {
		return "Platform [name=" + name + ", version=" + version + "]";
	}

}

@XmlRootElement(name = "cmsversion")
public class Root {

	private List keyPromsList;

	@XmlElement(name = "keyproms")
	public List getKeyPromsList() {
		return keyPromsList;
	}

	public void setKeyPromsList(List keyPromsList) {
		this.keyPromsList = keyPromsList;
	}

	@Override
	public String toString() {
		return "Root [keyPromsList=" + keyPromsList + "]";
	}

}

public class Version {

	private String versionNumber;

	private List entry;

	@XmlAttribute
	public String getVersionNumber() {
		return versionNumber;
	}

	public void setVersionNumber(String versionNumber) {
		this.versionNumber = versionNumber;
	}

	@XmlElementWrapper(name = "content")
	@XmlElement
	public List getEntry() {
		return entry;
	}

	public void setEntry(List entry) {
		this.entry = entry;
	}

	@Override
	public String toString() {
		return "Version [versionNumber=" + versionNumber + ", entry=" + entry
				+ "]";
	}

}

配置文件cmsversion.xml

通过该代码可以试一下是否成功

public class CMSVersionTest {

	@Test
	public void CMSVersion() throws Exception {
		System.out.println(CMSVersion.getCMSVersion("key", "iphone", "4.1"));
	}

}