xml和obj互转的库appliedxml

由于xml的扩展性比较好，有些项目经常用到Xml和和对象互转，常常遇到Xml字符串拼错、以及一些括号需要转码的问题， 目前开源的xml 转obj 库使用起来极为不方便，效率也比较低，例如SimpleXml，和betwixt，下面给大家介绍一款新的xml和java互转的库，经测试，解析或者生成一个2000行左右的xml字符串文本，耗时是SimpleXml的1/5左右，下载地址https://github.com/ludaiqian/appliedxml

几个小Demo：

1、对javabean的序列化

public class BeanTest {
	// 该字段将不会被序列化
	@Transient
	private String version;
	// 属性
	@Attribute
	private String attr1;

	private String element1;
	private String element2;
	private String[] testKeys = { "a", "b", "c" };
	private JavaBean javabean;

	public String getVersion() {
		return version;
	}

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

	public String getAttr1() {
		return attr1;
	}

	public void setAttr1(String attr1) {
		this.attr1 = attr1;
	}

	public String getElement1() {
		return element1;
	}

	public void setElement1(String element1) {
		this.element1 = element1;
	}

	public String getElement2() {
		return element2;
	}

	public void setElement2(String element2) {
		this.element2 = element2;
	}

	public String[] getTestKeys() {
		return testKeys;
	}

	public void setTestKeys(String[] testKeys) {
		this.testKeys = testKeys;
	}

	public JavaBean getJavabean() {
		return javabean;
	}

	public void setJavabean(JavaBean javabean) {
		this.javabean = javabean;
	}

	public BeanTest() {

	}

	public static void main(String[] args) throws IOException {
		// 创建序列化转换对象
		Serializer serializer = new Serializer();
		// 设置是否格式化
		serializer.setFormatted(true);
		// 空置是否序列化
		serializer.setNullValueSerializeRequired(false);
		BeanTest beanTest = new BeanTest();
		beanTest.setVersion("1.0");
		beanTest.setAttr1("attr");
		beanTest.setElement1("e1");
		beanTest.setElement2("e2");
		JavaBean javabean = new JavaBean();
		javabean.setBean1("b1");
		beanTest.setJavabean(javabean);
		// 将对象转为xml
		String xml = serializer.toXml(beanTest);
		System.out.println(xml);
	}

	public static class JavaBean {
		String bean1;
		String bean2;

		public String getBean1() {
			return bean1;
		}

		public void setBean1(String bean1) {
			this.bean1 = bean1;
		}

		public String getBean2() {
			return bean2;
		}

		public void setBean2(String bean2) {
			this.bean2 = bean2;
		}

		@Override
		public String toString() {
			return "JavaBean [bean1=" + bean1 + ", bean2=" + bean2 + "]";
		}

	}
}

运行结果：

<beanTest attr1="attr">
    <element1>e1</element1>
    <element2>e2</element2>
    <testKeys>
        <string>a</string>
        <string>b</string>
        <string>c</string>
    </testKeys>
    <javabean>
        <bean1>b1</bean1>
    </javabean>
</beanTest>

2、List序列化：

public class ListTest {
	@ElementList(name = "items", entry = "item")
	private ArrayList<String> arrayList = new ArrayList<String>();

	public ListTest() {
		arrayList.add("test1");
		arrayList.add("test2");
		arrayList.add("test3");
		arrayList.add("test4");
		arrayList.add("test5");
	}

	public static void main(String[] args) throws IOException {
		Serializer serializer = new Serializer();
		serializer.setFormatted(true);
		System.out.println(serializer.toXml(new ListTest()));
	}
}

运行结果：

<listTest>
    <items>
        <item>test1</item>
        <item>test2</item>
        <item>test3</item>
        <item>test4</item>
        <item>test5</item>
    </items>
</listTest>

3、Map 测试：

public class MapTest {
	@ElementMap(entry = "hello", keyAsAttribute = true, valueAsText = true)
	private HashMap<String, String> hellos = new HashMap<String, String>();
	@ElementMap(entry = "word")
	private HashMap<String, String> words = new HashMap<String, String>();

	public MapTest() {
		hellos.put("attr1", "text1");
		hellos.put("attr2", "text2");
		hellos.put("attr3", "text3");
		hellos.put("attr4", "text4");
		//
		words.put("k1", "v1");
		words.put("k2", "v2");
		words.put("k3", "v3");
		words.put("k4", "v4");
	}

	public static void main(String[] args) throws IOException {
		Serializer serializer = new Serializer();
		serializer.setFormatted(true);
		System.out.println(serializer.toXml(new MapTest()));
	}
}

运行结果：

<mapTest>
    <hellos>
        <hello key="attr2">text2</hello>
        <hello key="attr1">text1</hello>
        <hello key="attr4">text4</hello>
        <hello key="attr3">text3</hello>
    </hellos>
    <words>
        <word>
            <key>k3</key>
            <value>v3</value>
        </word>
        <word>
            <key>k4</key>
            <value>v4</value>
        </word>
        <word>
            <key>k1</key>
            <value>v1</value>
        </word>
        <word>
            <key>k2</key>
            <value>v2</value>
        </word>
    </words>
</mapTest>