java实现的xml格式化实现代码
核心代码：
packagecom.ddatsh;
importjava.io.IOException;
importjava.io.StringReader;
importjava.io.StringWriter;
importjava.io.UnsupportedEncodingException;
importorg.dom4j.Document;
importorg.dom4j.DocumentException;
importorg.dom4j.io.OutputFormat;
importorg.dom4j.io.SAXReader;
importorg.dom4j.io.XMLWriter;
publicclassXmlFormat{
publicstaticStringformat(Stringstr)throwsException{
SAXReaderreader=newSAXReader();
//System.out.println(reader);
//注释：创建一个串的字符输入流
StringReaderin=newStringReader(str);
Documentdoc=reader.read(in);
//System.out.println(doc.getRootElement());
//注释：创建输出格式
OutputFormatformater=OutputFormat.createPrettyPrint();
//formater=OutputFormat.createCompactFormat();
//注释：设置xml的输出编码
formater.setEncoding("utf-8");
//注释：创建输出(目标)
StringWriterout=newStringWriter();
//注释：创建输出流
XMLWriterwriter=newXMLWriter(out,formater);
//注释：输出格式化的串到目标中，执行后。格式化后的串保存在out中。
writer.write(doc);
writer.close();
System.out.println(out.toString());
//注释：返回我们格式化后的结果
returnout.toString();
}
publicstaticvoidmain(String[]args)throwsException{
Stringhead="<?xmlversion=\"1.0\"encoding=\"GBK\"?>";
Stringstr="<RequestData><HeadData><UserCode>sh1_admin</UserCode><UserName>sh1_admin</UserName><UserCompanyCode>3107</UserCompanyCode><UserCompanyName>上海分公司一部</UserCompanyName><RequestType>03</RequestType></HeadData><BodyData><ReportId>113100000033</ReportId><Insurant>a5rfg87</Insurant><NumberPlate>沪E78612</NumberPlate><EngineModel></EngineModel><CarVin></CarVin><AccidentDate>2011-02-2515:07:00</AccidentDate><ReportDate>2011-02-2515:07:00</ReportDate><Province>310000</Province><City>310100</City><District></District><AccidentPlace>1</AccidentPlace><AccidentLongitude></AccidentLongitude><AccidentLatitude></AccidentLatitude><SurveyLongitude></SurveyLongitude><SurveyLatitude></SurveyLatitude><SceneReportFlag></SceneReportFlag><Reporter></Reporter><ReporterTel></ReporterTel><SurveyPlace></SurveyPlace><OperatorId>3525</OperatorId><OperatorName>sh_admin</OperatorName><ReportDealId>30000800</ReportDealId><ReportDealName>江苏分公司</ReportDealName><CompanyName></CompanyName><CustomerTypeCode></CustomerTypeCode><ForcePolicyId>a5rfg87a5rfg87a5rfg87</ForcePolicyId><BizPolicyId></BizPolicyId><Index>0</Index><FieldName>5</FieldName></BodyData></RequestData>";
//System.out.println(str);
format(str);
}
}
oschina用的在线格式化xml的工具就是使用此段代码。