Xml和Json互转工具类

package com.test.util; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileWriter; import java.io.IOException; import java.io.InputStreamReader; import net.sf.json.JSONArray; import net.sf.json.JSONObject; import net.sf.json.xml.XMLSerializer; /** * json xml 互转工具类 * @author：yqgao * @date：2015-4-16 下午02:01:38 */ public class XmlJSONUtil { private static XMLSerializer xmlserializer = new XMLSerializer(); private static final String STR_JSON_OBJECT = "{"+ "\"name\": \"小王\","+ "\"age\": \"20\","+ "\"add\": \"北京\","+ "\"gender\": \"男\""+ "}"; private static final String STR_JSON_ARRAY = "[{"+ "\"name\": \"小王\","+ "\"age\": \"20\","+ "\"add\": \"北京\","+ "\"gender\": \"男\""+ "},"+ "{"+ "\"name\": \"小李\","+ "\"age\": \"21\","+ "\"add\": \"上海\","+ "\"gender\": \"女\""+ "}]"; /** * xml格式字符串转化成jsonObject或者jsonArray * @param xml * @return */ public static String xml2json(String xml){ String rs = ""; try { rs = xmlserializer.read(xml).toString(); } catch (Exception e) { //e.printStackTrace(); System.err.println("xml转化为json异常..."); } return rs; } /** * jsonArray或者jsonObject字符串转化为xml * @param json * @return */ public static String json2xml(String json){ String rs = ""; try { if(json.contains("[")&&json.contains("]")){ //jsonArray JSONArray jobj = JSONArray.fromObject(json); rs = xmlserializer.write(jobj); }else{ //jsonObject JSONObject jobj = JSONObject.fromObject(json); rs = xmlserializer.write(jobj); } } catch (Exception e) { //e.printStackTrace(); System.err.println("jsonArray转化为xml异常..."); } return rs; } /*** * json和xml文件互转 * @param sourcePath json文件的路径 * @param outPath xml文件的路径 * @param enterFlag 转化标识 1表示json转化为xml * 2表示xml转化为json * @return */ public static String jfxfTranspose(String sourcePath,String outPath,int enterFlag){ FileInputStream in =null; BufferedReader br = null; FileWriter fw = null; String rs = null; try{ File jsonFile = new File(sourcePath); in = new FileInputStream(jsonFile); StringBuffer sbuf = new StringBuffer(); br = new BufferedReader(new InputStreamReader(in)); String temp =null; while((temp=br.readLine())!=null){ sbuf.append(temp); } if(1==enterFlag){ rs = json2xml(sbuf.toString()); }else{ rs = xml2json(sbuf.toString()); } File test = new File(outPath); if(!test.exists()){ test.createNewFile(); } fw = new FileWriter(test); fw.write(rs); }catch (Exception e) { System.err.println("json和xml转化文件异常..."); }finally{ try { fw.close(); br.close(); in.close(); } catch (Exception e) { System.err.println("输入、输出流关闭异常"); e.printStackTrace(); } } return rs; } public static void main(String[] args) throws IOException { // String xml1 = json2xml(STR_JSON_OBJECT); String xml1 = json2xml(STR_JSON_ARRAY); System.out.println("xml ==>"+xml1); String json1 = xml2json(xml1); System.out.println("json==>"+json1); String spath2 = "F:/WorkSpace/JavaProject/src/com/test/util/gao.json"; String opath2 = "F:/WorkSpace/JavaProject/src/com/test/util/testGao.xml"; String rs2 = jfxfTranspose(spath2,opath2,1); System.out.print(rs2); String spath1 = "F:/WorkSpace/JavaProject/src/com/test/util/testGao.xml"; String opath1 = "F:/WorkSpace/JavaProject/src/com/test/util/test.json"; String rs1 = jfxfTranspose(spath1,opath1,2); System.out.print(rs1); } }