package sdcncsi.ict.site.web.xzsp;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Collection;import java.util.Date;import java.util.HashMap;import java.util.Iterator;import java.util.List;import java.util.Map; import net.sf.json.JSONArray;import net.sf.json.JSONObject;import net.sf.json.JsonConfig;import net.sf.json.processors.JsonValueProcessor;import net.sf.json.xml.XMLSerializer;public class JsonUtil {/** * 设置日期转换格式 *//* * static { //注册器 MorpherRegistry mr = JSONUtils.getMorpherRegistry(); * * //可转换的日期格式，即Json串中可以出现以下格式的日期与时间 DateMorpher dm = new DateMorpher(new * String[] { Util.YYYY_MM_DD, Util.YYYY_MM_DD_HH_MM_ss, Util.HH_MM_ss, * Util.YYYYMMDD, Util.YYYYMMDDHHMMSS, Util.HHMMss }); * mr.registerMorpher(dm); } *//** * 从json串转换成实体对象 * * @param jsonObjStr * e.g. {'name':'get','dateAttr':'2009-11-12'} * @param clazz * Person.class * @return */public static Object getDtoFromJsonObjStr(String jsonObjStr, Class clazz) {return JSONObject.toBean(JSONObject.fromObject(jsonObjStr), clazz);}/** * 从json串转换成实体对象，并且实体集合属性存有另外实体Bean * * @param jsonObjStr * e.g. {'data':[{'name':'get'},{'name':'set'}]} * @param clazz * e.g. MyBean.class * @param classMap * e.g. classMap.put("data", Person.class) * @return Object */public static Object getDtoFromJsonObjStr(String jsonObjStr, Class clazz,Map classMap) {return JSONObject.toBean(JSONObject.fromObject(jsonObjStr), clazz,classMap);}/** * 把一个json数组串转换成普通数组 * * @param jsonArrStr * e.g. ['get',1,true,null] * @return Object[] */public static Object[] getArrFromJsonArrStr(String jsonArrStr) {return JSONArray.fromObject(jsonArrStr).toArray();}/** * 把一个json数组串转换成实体数组 * * @param jsonArrStr * e.g. [{'name':'get'},{'name':'set'}] * @param clazz * e.g. Person.class * @return Object[] */public static Object[] getDtoArrFromJsonArrStr(String jsonArrStr,Class clazz) {JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);Object[] objArr = new Object[jsonArr.size()];for (int i = 0; i < jsonArr.size(); i++) {objArr[i] = JSONObject.toBean(jsonArr.getJSONObject(i), clazz);}return objArr;}/** * 把一个json数组串转换成实体数组，且数组元素的属性含有另外实例Bean * * @param jsonArrStr * e.g. [{'data':[{'name':'get'}]},{'data':[{'name':'set'}]}] * @param clazz * e.g. MyBean.class * @param classMap * e.g. classMap.put("data", Person.class) * @return Object[] */public static Object[] getDtoArrFromJsonArrStr(String jsonArrStr,Class clazz, Map classMap) {JSONArray array = JSONArray.fromObject(jsonArrStr);Object[] obj = new Object[array.size()];for (int i = 0; i < array.size(); i++) {JSONObject jsonObject = array.getJSONObject(i);obj[i] = JSONObject.toBean(jsonObject, clazz, classMap);}return obj;}/** * 把一个json数组串转换成存放普通类型元素的集合 * * @param jsonArrStr * e.g. ['get',1,true,null] * @return List */public static List getListFromJsonArrStr(String jsonArrStr) {JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);List list = new ArrayList();for (int i = 0; i < jsonArr.size(); i++) {list.add(jsonArr.get(i));}return list;}/** * 把一个json数组串转换成集合，且集合里存放的为实例Bean * * @param jsonArrStr * e.g. [{'name':'get'},{'name':'set'}] * @param clazz * @return List */public static List getListFromJsonArrStr(String jsonArrStr, Class clazz) {JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);List list = new ArrayList();for (int i = 0; i < jsonArr.size(); i++) {list.add(JSONObject.toBean(jsonArr.getJSONObject(i), clazz));}return list;}/** * 把一个json数组串转换成集合，且集合里的对象的属性含有另外实例Bean * * @param jsonArrStr * e.g. [{'data':[{'name':'get'}]},{'data':[{'name':'set'}]}] * @param clazz * e.g. MyBean.class * @param classMap * e.g. classMap.put("data", Person.class) * @return List */public static List getListFromJsonArrStr(String jsonArrStr, Class clazz,Map classMap) {JSONArray jsonArr = JSONArray.fromObject(jsonArrStr);List list = new ArrayList();for (int i = 0; i < jsonArr.size(); i++) {list.add(JSONObject.toBean(jsonArr.getJSONObject(i), clazz,classMap));}return list;}/** * 把json对象串转换成map对象 * * @param jsonObjStr * e.g. {'name':'get','int':1,'double',1.1,'null':null} * @return Map */public static Map getMapFromJsonObjStr(String jsonObjStr) {JSONObject jsonObject = JSONObject.fromObject(jsonObjStr);Map map = new HashMap();for (Iterator iter = jsonObject.keys(); iter.hasNext();) {String key = (String) iter.next();map.put(key, jsonObject.get(key));}return map;}/** * 把json对象串转换成map对象，且map对象里存放的为其他实体Bean * * @param jsonObjStr * e.g. {'data1':{'name':'get'},'data2':{'name':'set'}} * @param clazz * e.g. Person.class * @return Map */public static Map getMapFromJsonObjStr(String jsonObjStr, Class clazz) {JSONObject jsonObject = JSONObject.fromObject(jsonObjStr);Map map = new HashMap();for (Iterator iter = jsonObject.keys(); iter.hasNext();) {String key = (String) iter.next();map.put(key, JSONObject.toBean(jsonObject.getJSONObject(key), clazz));}return map;}/** * 把json对象串转换成map对象，且map对象里存放的其他实体Bean还含有另外实体Bean * * @param jsonObjStr * e.g. {'mybean':{'data':[{'name':'get'}]}} * @param clazz * e.g. MyBean.class * @param classMap * e.g. classMap.put("data", Person.class) * @return Map */public static Map getMapFromJsonObjStr(String jsonObjStr, Class clazz,Map classMap) {JSONObject jsonObject = JSONObject.fromObject(jsonObjStr);Map map = new HashMap();for (Iterator iter = jsonObject.keys(); iter.hasNext();) {String key = (String) iter.next();map.put(key, JSONObject.toBean(jsonObject.getJSONObject(key),clazz, classMap));}return map;}/** * 把实体Bean、Map对象、数组、列表集合转换成Json串 * * @param obj * @return * @throws Exception * String */public static String getJsonStr(Object obj) {String jsonStr = null;// Json配置JsonConfig jsonCfg = new JsonConfig();// 注册日期处理器jsonCfg.registerJsonValueProcessor(java.util.Date.class,// new JsonDateValueProcessor(Util.YYYY_MM_DD_HH_MM_ss));new JsonDateValueProcessor("yyyy-MM-dd HH:mm:ss"));if (obj == null) {return "{}";}if (obj instanceof Collection || obj instanceof Object[]) {jsonStr = JSONArray.fromObject(obj, jsonCfg).toString();} else {jsonStr = JSONObject.fromObject(obj, jsonCfg).toString();}return jsonStr;}/** * 把json串、数组、集合(collection map)、实体Bean转换成XML XMLSerializer API： * http://json-lib.sourceforge.net/apidocs/net/sf/json/xml/XMLSerializer.html * 具体实例请参考： * http://json-lib.sourceforge.net/xref-test/net/sf/json/xml/TestXMLSerializer_writes.html * http://json-lib.sourceforge.net/xref-test/net/sf/json/xml/TestXMLSerializer_writes.html * * @param obj * @return * @throws Exception * String */public static String getXMLFromObj(Object obj) {XMLSerializer xmlSerial = new XMLSerializer();// Json配置JsonConfig jsonCfg = new JsonConfig();// 注册日期处理器jsonCfg.registerJsonValueProcessor(java.util.Date.class,// new JsonDateValueProcessor(Util.YYYY_MM_DD_HH_MM_ss));new JsonDateValueProcessor("yyyy-MM-dd HH:mm:ss"));if ((String.class.isInstance(obj) && String.valueOf(obj).startsWith("["))|| obj.getClass().isArray() || Collection.class.isInstance(obj)) {JSONArray jsonArr = JSONArray.fromObject(obj, jsonCfg);return xmlSerial.write(jsonArr);} else {JSONObject jsonObj = JSONObject.fromObject(obj, jsonCfg);return xmlSerial.write(jsonObj);}}/** * 从XML转json串 * * @param xml * @return String */public static String getJsonStrFromXML(String xml) {XMLSerializer xmlSerial = new XMLSerializer();return String.valueOf(xmlSerial.read(xml));}}/** * json日期值处理器实现 (C) 2009-9-11, jzj */class JsonDateValueProcessor implements JsonValueProcessor {// private String format = Util.YYYY_MM_DD_HH_MM_ss;private String format = "yyyy-MM-dd HH:mm:ss";public JsonDateValueProcessor() {}public JsonDateValueProcessor(String format) {this.format = format;}public Object processArrayValue(Object value, JsonConfig jsonConfig) {return process(value, jsonConfig);}public Object processObjectValue(String key, Object value,JsonConfig jsonConfig) {return process(value, jsonConfig);}private Object process(Object value, JsonConfig jsonConfig) {if (value instanceof Date) {String str = new SimpleDateFormat(format).format((Date) value);return str;}return value == null ? null : value.toString();}public String getFormat() {return format;}public void setFormat(String format) {this.format = format;}}
