JABX生成与解析XML工具类
package com.wisetv.spark.dataautocontroller.util;
import java.io.StringReader;
import java.io.StringWriter;
import java.util.Collection;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlAnyElement;
import javax.xml.namespace.QName;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.Validate;
/**
* 使用Jaxb2.0实现XML<->Java Object的Mapper.
* 在创建时需要设定所有需要序列化的Root对象的Class.
* 特别支持Root对象是Collection的情形.
*/
public class JaxbUtil {
private static ConcurrentMap jaxbContexts = new ConcurrentHashMap();
/**
* Java Object->Xml without encoding.
*/
@SuppressWarnings("rawtypes")
public static String toXml(Object root) throws JAXBException {
Class clazz = getUserClass(root);
return toXml(root, clazz, null);
}
/**
* Java Object->Xml with encoding.
*/
@SuppressWarnings("rawtypes")
public static String toXml(Object root, String encoding) throws JAXBException {
Class clazz = getUserClass(root);
return toXml(root, clazz, encoding);
}
public static Class getUserClass(Object root){
return root.getClass();
}
/**
* Java Object->Xml with encoding.
*/
@SuppressWarnings("rawtypes")
public static String toXml(Object root, Class clazz, String encoding) throws JAXBException {
StringWriter writer = new StringWriter();
createMarshaller(clazz, encoding).marshal(root, writer);
return writer.toString();
}
/**
* Java Collection->Xml without encoding, 特别支持Root Element是Collection的情形.
*/
@SuppressWarnings("rawtypes")
public static String toXml(Collection root, String rootName, Class clazz) throws JAXBException {
return toXml(root, rootName, clazz, null);
}
/**
* Java Collection->Xml with encoding, 特别支持Root Element是Collection的情形.
*/
@SuppressWarnings("rawtypes")
public static String toXml(Collection root, String rootName, Class clazz, String encoding) throws JAXBException {
CollectionWrapper wrapper = new CollectionWrapper();
wrapper.collection = root;
JAXBElement wrapperElement = new JAXBElement(new QName(rootName),
CollectionWrapper.class, wrapper);
StringWriter writer = new StringWriter();
createMarshaller(clazz, encoding).marshal(wrapperElement, writer);
return writer.toString();
}
/**
* Xml->Java Object.
*/
@SuppressWarnings("unchecked")
public static T fromXml(String xml, Class clazz) {
try {
StringReader reader = new StringReader(xml);
return (T) createUnmarshaller(clazz).unmarshal(reader);
} catch (JAXBException e) {
e.printStackTrace();
}
return null;
}
/**
* 创建Marshaller并设定encoding(可为null).
* 线程不安全，需要每次创建或pooling。
*/
@SuppressWarnings("rawtypes")
public static Marshaller createMarshaller(Class clazz, String encoding) throws JAXBException {
JAXBContext jaxbContext = getJaxbContext(clazz);
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
if (StringUtils.isNotBlank(encoding)) {
marshaller.setProperty(Marshaller.JAXB_ENCODING, encoding);
}
return marshaller;
}
/**
* 创建UnMarshaller.
* 线程不安全，需要每次创建或pooling。
*/
@SuppressWarnings("rawtypes")
public static Unmarshaller createUnmarshaller(Class clazz) {
try {
JAXBContext jaxbContext = getJaxbContext(clazz);
return jaxbContext.createUnmarshaller();
} catch (JAXBException e) {
e.printStackTrace();
}
return null;
}
@SuppressWarnings("rawtypes")
protected static JAXBContext getJaxbContext(Class clazz) {
Validate.notNull(clazz, "'clazz' must not be null");
JAXBContext jaxbContext = jaxbContexts.get(clazz);
if (jaxbContext == null) {
try {
jaxbContext = JAXBContext.newInstance(clazz, CollectionWrapper.class);
jaxbContexts.putIfAbsent(clazz, jaxbContext);
} catch (JAXBException ex) {
throw new RuntimeException("Could not instantiate JAXBContext for class [" + clazz + "]: "
+ ex.getMessage(), ex);
}
}
return jaxbContext;
}
/**
* 封装Root Element 是 Collection的情况.
*/
public static class CollectionWrapper {
@XmlAnyElement
protected Collection collection;
}
public static void main(String[] args) {
Object a = (Object)new String();
Class aClass = a.getClass();
System.out.println(aClass.getName());
}
}
演示
package com.wisetv.spark.test;
import com.wisetv.spark.dataautocontroller.bean.DataAutoAnalysisBean;
import com.wisetv.spark.dataautocontroller.bean.FieldsBean;
import com.wisetv.spark.dataautocontroller.bean.ProcessDataBean;
import com.wisetv.spark.dataautocontroller.bean.RecordBean;
import com.wisetv.spark.dataautocontroller.util.JaxbUtil;
import javax.xml.bind.JAXBException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DataJobGenerate {
public static void main(String[] args) {
DataAutoAnalysisBean bean = new DataAutoAnalysisBean();
bean.setFieldParser("iptv_parser");
ProcessDataBean processDataBean = new ProcessDataBean();
List fieldsBeanList = new ArrayList<>();
FieldsBean fieldsBean1 = new FieldsBean();
fieldsBean1.setFieldname("userid");
fieldsBean1.setValue("userid");
fieldsBeanList.add(fieldsBean1);
FieldsBean fieldsBean2 = new FieldsBean();
fieldsBean2.setFieldname("channelid");
fieldsBean2.setValue("channelid");
fieldsBeanList.add(fieldsBean2);
FieldsBean fieldsBean3 = new FieldsBean();
fieldsBean3.setFieldname("starttime");
fieldsBean3.setValue("DateFromat('pre_time','yyyyMMddHHmmss','yyyyMMddHHmmss')");
fieldsBeanList.add(fieldsBean3);
FieldsBean fieldsBean4 = new FieldsBean();
fieldsBean4.setFieldname("endtime");
fieldsBean4.setValue("DateFromat('cur_time','yyyyMMddHHmmss','yyyyMMddHHmmss')");
fieldsBeanList.add(fieldsBean4);
processDataBean.setFieldList(fieldsBeanList);
processDataBean.setType("3");
processDataBean.setOutputPath("E:\\model\\aaa");
processDataBean.setAbstractDisFunctionName("DefaultDisPatch");
processDataBean.setDataDispatchProcessName("DataDispatchProcess");
List processDataBeanList = new ArrayList<>();
processDataBeanList.add(processDataBean);
bean.setProcessDataList(processDataBeanList);
List recordBeanList = new ArrayList<>();
RecordBean recordBean1 = new RecordBean();
recordBean1.setProcessName("LogPreProcessMax");
recordBean1.setInputfile("e:/MapInfo.2019-04-20.log");
recordBean1.setKeys("userid,stbtype");
recordBean1.setResultName("LogPreProcessMax");
recordBeanList.add(recordBean1);
RecordBean recordBean2 = new RecordBean();
recordBean2.setProcessName("LogPreProcessMin");
recordBean2.setInputfile("e:/MapInfo.2019-04-20.log");
recordBean2.setKeys("userid,stbtype");
recordBean2.setResultName("LogPreProcessMin");
recordBeanList.add(recordBean2);
RecordBean recordBean3 = new RecordBean();
recordBean3.setProcessName("LogPreProcessGroup");
recordBean3.setInputfile("e:/MapInfo.2019-04-20.log");
recordBean3.setKeys("userid,stbtype");
recordBean3.setResultName("LogPreProcessGroup");
List inputList = new ArrayList<>();
inputList.add("LogPreProcessMax");
inputList.add("LogPreProcessMin");
recordBean3.setInputList(inputList);
recordBeanList.add(recordBean3);
inputList.clear();
RecordBean recordBean4 = new RecordBean();
recordBean4.setProcessName("LogPreProcessSort");
recordBean4.setKeys("userid,stbtype");
recordBean4.setResultName("LogPreProcessSort");
inputList.add("LogPreProcessGroup");
recordBeanList.add(recordBean4);
inputList.clear();
RecordBean recordBean5 = new RecordBean();
recordBean5.setProcessName("LogPreProcessETL");
recordBean5.setFunctionName("FilterChannelstatus");
recordBean5.setAbstractFunctionType("AbstractETLFunction");
recordBean5.setResultName("LogPreProcessETL");
inputList.add("LogPreProcessSort");
recordBeanList.add(recordBean5);
RecordBean recordBean6 = new RecordBean();
recordBean6.setProcessName("LogDataFormatProcess");
recordBean6.setFunctionName("DefaultFormat");
recordBean6.setAbstractFunctionType("AbstractFormatFunction");
recordBean6.setResultName("LogDataFormatProcess");
inputList.add("LogPreProcessSort");
recordBeanList.add(recordBean6);
bean.setRecordBeanList(recordBeanList);
String xml = "\n" +
"\n" +
" \n" +
" \n" +
" userid \n" +
" userid \n" +
" \n" +
" \n" +
" channelid \n" +
" channelid \n" +
" \n" +
" \n" +
" starttime \n" +
" DateFromat('pre_time','yyyyMMddHHmmss','yyyyMMddHHmmss') \n" +
" \n" +
" \n" +
" endtime \n" +
" DateFromat('cur_time','yyyyMMddHHmmss','yyyyMMddHHmmss') \n" +
" \n" +
" 3 \n" +
" E:\\model\\aaa \n" +
" DataDispatchProcess \n" +
" DefaultDisPatch \n" +
" \n" +
" \n" +
" LogPreProcessMax \n" +
" userid,stbtype \n" +
" e:/MapInfo.2019-04-20.log \n" +
" LogPreProcessMax \n" +
" \n" +
" \n" +
" LogPreProcessMin \n" +
" userid,stbtype \n" +
" e:/MapInfo.2019-04-20.log \n" +
" LogPreProcessMin \n" +
" \n" +
" \n" +
" LogPreProcessGroup \n" +
" userid,stbtype \n" +
" e:/MapInfo.2019-04-20.log \n" +
" LogPreProcessSort \n" +
" LogPreProcessSort \n" +
" LogPreProcessGroup \n" +
" \n" +
" \n" +
" LogPreProcessSort \n" +
" userid,stbtype \n" +
" LogPreProcessSort \n" +
" \n" +
" \n" +
" LogPreProcessETL \n" +
" FilterChannelstatus \n" +
" AbstractETLFunction \n" +
" LogPreProcessETL \n" +
" \n" +
" \n" +
" LogDataFormatProcess \n" +
" DefaultFormat \n" +
" AbstractFormatFunction \n" +
" LogDataFormatProcess \n" +
" \n" +
" ";
DataAutoAnalysisBean bean1 = JaxbUtil.fromXml(xml, DataAutoAnalysisBean.class);
System.out.println(bean1);
// try {
// System.out.println(JaxbUtil.toXml(bean));
// } catch (JAXBException e) {
// e.printStackTrace();
// }
}
}