先说明一下，这个实体中嵌套有多层内部类，json是已经拼好的。
json字符串为：
{"QueryMXASSETDTSResponse":{"rsStart":0,"rsCount":2,"rsTotal":2,"MXASSETDTSSet":{"ASSET":[{"ASSETNUM":"D-1001B","DESCRIPTION":"\u5367\u5f0f\u6c14\u6db2\u5206\u79bb\u5668","SITEID":"AMHSITE1","STATUS":"\u64cd\u4f5c","ASSETSPEC":[{"ALNVALUE":"\u91cd\u529b(\u6c14\u6db2)\u5206\u79bb\u5668","ASSETATTRID":"EQUIPN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u5907\u540d\u79f0","ORGID":"AMHNG"}]},{"ASSETATTRID":"MTN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u578b\u53f7","ORGID":"AMHNG"}]},{"ALNVALUE":"R208084","ASSETATTRID":"SN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u7cfb\u5217\u53f7","ORGID":"AMHNG"}]},{"ALNVALUE":"\u539f\u6599\u6c14","ASSETATTRID":"MEDIUM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4ecb\u8d28\u7c7b\u578b","ORGID":"AMHNG"}]},{"ALNVALUE":"\u5367\u5f0f\u5706\u7b52","ASSETATTRID":"TYPE","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u578b\u5f0f","ORGID":"AMHNG"}]},{"ALNVALUE":"\u542b\u6c14\u6db2\u5206\u79bb\u5143\u4ef6\uff0c\u79ef\u6db2\u5305\uff1b\u6c14\u6db2\u5206\u79bb","ASSETATTRID":"CAP","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u7ed3\u6784\u4e0e\u7528\u9014","ORGID":"AMHNG"}]},{"ALNVALUE":"8.4","ASSETATTRID":"DPR","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u538b\u529b","ORGID":"AMHNG"}]},{"ALNVALUE":"11.33","ASSETATTRID":"TP","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u6d4b\u8bd5\u538b\u529b","ORGID":"AMHNG"}]},{"ALNVALUE":"80","ASSETATTRID":"DTE","LINEARASSETSPECID":0,"MEASUREUNITID":"\u2103","ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u6e29\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"15-35","ASSETATTRID":"WT","LINEARASSETSPECID":0,"MEASUREUNITID":"\u2103","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5de5\u4f5c\u6e29\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"8","ASSETATTRID":"WP","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5de5\u4f5c\u538b\u529b","ORGID":"AMHNG"}]},{"ASSETATTRID":"IND","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5185\u5f84","ORGID":"AMHNG"}]},{"ASSETATTRID":"ED","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5916\u5f84","ORGID":"AMHNG"}]},{"ASSETATTRID":"WAT","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u58c1\u539a","ORGID":"AMHNG"}]},{"ALNVALUE":"20R\n\u6b63\u706b","ASSETATTRID":"BM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4e3b\u4f53\u6750\u6599","ORGID":"AMHNG"}]},{"ALNVALUE":"4","ASSETATTRID":"RL","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8150\u8680\u88d5\u5ea6","ORGID":"AMHNG"}]},{"ASSETATTRID":"HPT","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u4fdd\u6e29\u539a\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"\u805a\u915a\u919b\u677f\u6750","ASSETATTRID":"HPM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4fdd\u6e29\u6750\u6599","ORGID":"AMHNG"}]},{"ASSETATTRID":"AM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u9632\u8150\u63aa\u65bd","ORGID":"AMHNG"}]},{"ALNVALUE":"17.54","ASSETATTRID":"CU","LINEARASSETSPECID":0,"MEASUREUNITID":"M3","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5bb9\u79ef","ORGID":"AMHNG"}]},{"ALNVALUE":"\u4e0a:\u03a61600\u00d772\u00d77044\u4e0b:800\u00d736\u00d77295","ASSETATTRID":"DIM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u89c4\u683c\u5c3a\u5bf8","ORGID":"AMHNG"}]},{"ALNVALUE":"37200","ASSETATTRID":"WEIGHT","LINEARASSETSPECID":0,"MEASUREUNITID":"KG","ASSETATTRIBUTE":[{"DESCRIPTION":"\u91cd\u91cf","ORGID":"AMHNG"}]},{"ALNVALUE":"39783","ASSETATTRID":"MD","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u751f\u4ea7\u65e5\u671f","ORGID":"AMHNG"}]},{"ALNVALUE":"2","ASSETATTRID":"PVE","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u5bb9\u5668\u7c7b\u522b","ORGID":"AMHNG"}]},{"ALNVALUE":"\u4e2d\u56fd\u77f3\u6cb9\u96c6\u56e2\u5de5\u7a0b\u8bbe\u8ba1\u6709\u9650\u8d23\u4efb\u516c\u53f8\u897f\u5357\u5206\u516c\u53f8","ASSETATTRID":"DESIGNER","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u5355\u4f4d","ORGID":"AMHNG"}]},{"ALNVALUE":"\u56db\u5ddd\u77f3\u6cb9\u5929\u7136\u6c14\u5efa\u8bbe\u5de5\u7a0b\u6709\u9650\u8d23\u4efb\u516c\u53f8\uff08\u5bb9\u5668\u5236\u9020\u5382\uff09","ASSETATTRID":"MFRN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u751f\u4ea7\u5382\u5546","ORGID":"AMHNG"}]},{"ASSETATTRID":"VENDORN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4f9b\u8d27\u5546","ORGID":"AMHNG"}]},{"ASSETATTRID":"REMARK","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u5907\u6ce8","ORGID":"AMHNG"}]}]},{"ASSETNUM":"D-1001C","DESCRIPTION":"\u5367\u5f0f\u6c14\u6db2\u5206\u79bb\u5668","SITEID":"AMHSITE1","STATUS":"\u64cd\u4f5c","ASSETSPEC":[{"ALNVALUE":"\u91cd\u529b(\u6c14\u6db2)\u5206\u79bb\u5668","ASSETATTRID":"EQUIPN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u5907\u540d\u79f0","ORGID":"AMHNG"}]},{"ASSETATTRID":"MTN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u578b\u53f7","ORGID":"AMHNG"}]},{"ALNVALUE":"R208081","ASSETATTRID":"SN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u7cfb\u5217\u53f7","ORGID":"AMHNG"}]},{"ALNVALUE":"\u539f\u6599\u6c14","ASSETATTRID":"MEDIUM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4ecb\u8d28\u7c7b\u578b","ORGID":"AMHNG"}]},{"ALNVALUE":"\u5367\u5f0f\u5706\u7b52","ASSETATTRID":"TYPE","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u578b\u5f0f","ORGID":"AMHNG"}]},{"ALNVALUE":"\u542b\u6c14\u6db2\u5206\u79bb\u5143\u4ef6\uff0c\u79ef\u6db2\u5305\uff1b\u6c14\u6db2\u5206\u79bb","ASSETATTRID":"CAP","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u7ed3\u6784\u4e0e\u7528\u9014","ORGID":"AMHNG"}]},{"ALNVALUE":"8.4","ASSETATTRID":"DPR","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u538b\u529b","ORGID":"AMHNG"}]},{"ALNVALUE":"11.33","ASSETATTRID":"TP","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u6d4b\u8bd5\u538b\u529b","ORGID":"AMHNG"}]},{"ALNVALUE":"80","ASSETATTRID":"DTE","LINEARASSETSPECID":0,"MEASUREUNITID":"\u2103","ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u6e29\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"15-35","ASSETATTRID":"WT","LINEARASSETSPECID":0,"MEASUREUNITID":"\u2103","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5de5\u4f5c\u6e29\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"8","ASSETATTRID":"WP","LINEARASSETSPECID":0,"MEASUREUNITID":"MPA","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5de5\u4f5c\u538b\u529b","ORGID":"AMHNG"}]},{"ASSETATTRID":"IND","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5185\u5f84","ORGID":"AMHNG"}]},{"ASSETATTRID":"ED","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5916\u5f84","ORGID":"AMHNG"}]},{"ASSETATTRID":"WAT","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u58c1\u539a","ORGID":"AMHNG"}]},{"ALNVALUE":"20R\n\u6b63\u706b","ASSETATTRID":"BM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4e3b\u4f53\u6750\u6599","ORGID":"AMHNG"}]},{"ALNVALUE":"4","ASSETATTRID":"RL","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8150\u8680\u88d5\u5ea6","ORGID":"AMHNG"}]},{"ASSETATTRID":"HPT","LINEARASSETSPECID":0,"MEASUREUNITID":"MM","ASSETATTRIBUTE":[{"DESCRIPTION":"\u4fdd\u6e29\u539a\u5ea6","ORGID":"AMHNG"}]},{"ALNVALUE":"\u805a\u915a\u919b\u677f\u6750","ASSETATTRID":"HPM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4fdd\u6e29\u6750\u6599","ORGID":"AMHNG"}]},{"ASSETATTRID":"AM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u9632\u8150\u63aa\u65bd","ORGID":"AMHNG"}]},{"ALNVALUE":"17.54","ASSETATTRID":"CU","LINEARASSETSPECID":0,"MEASUREUNITID":"M3","ASSETATTRIBUTE":[{"DESCRIPTION":"\u5bb9\u79ef","ORGID":"AMHNG"}]},{"ALNVALUE":"\u4e0a:\u03a61600\u00d772\u00d77044\u4e0b:800\u00d736\u00d77295","ASSETATTRID":"DIM","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u89c4\u683c\u5c3a\u5bf8","ORGID":"AMHNG"}]},{"ALNVALUE":"37200","ASSETATTRID":"WEIGHT","LINEARASSETSPECID":0,"MEASUREUNITID":"KG","ASSETATTRIBUTE":[{"DESCRIPTION":"\u91cd\u91cf","ORGID":"AMHNG"}]},{"ALNVALUE":"39783","ASSETATTRID":"MD","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u751f\u4ea7\u65e5\u671f","ORGID":"AMHNG"}]},{"ALNVALUE":"2","ASSETATTRID":"PVE","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u5bb9\u5668\u7c7b\u522b","ORGID":"AMHNG"}]},{"ALNVALUE":"\u4e2d\u56fd\u77f3\u6cb9\u96c6\u56e2\u5de5\u7a0b\u8bbe\u8ba1\u6709\u9650\u8d23\u4efb\u516c\u53f8\u897f\u5357\u5206\u516c\u53f8","ASSETATTRID":"DESIGNER","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u8bbe\u8ba1\u5355\u4f4d","ORGID":"AMHNG"}]},{"ALNVALUE":"\u56db\u5ddd\u77f3\u6cb9\u5929\u7136\u6c14\u5efa\u8bbe\u5de5\u7a0b\u6709\u9650\u8d23\u4efb\u516c\u53f8\uff08\u5bb9\u5668\u5236\u9020\u5382\uff09","ASSETATTRID":"MFRN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u751f\u4ea7\u5382\u5546","ORGID":"AMHNG"}]},{"ASSETATTRID":"VENDORN","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u4f9b\u8d27\u5546","ORGID":"AMHNG"}]},{"ASSETATTRID":"REMARK","LINEARASSETSPECID":0,"ASSETATTRIBUTE":[{"DESCRIPTION":"\u5907\u6ce8","ORGID":"AMHNG"}]}]}]}}}
将要转换为的实体：
package cn.jasgroup.amudraya.domain;
import java.util.List;
import net.sf.json.JSONArray;
import cn.jasgroup.amudraya.base.commons.utils.JsonUtil;
public class EquipRemoteData {
private QueryMxassetDtsResponse querymxassetdtsresponse;
public QueryMxassetDtsResponse getQuerymxassetdtsresponse() {
return querymxassetdtsresponse;
}
public void setQuerymxassetdtsresponse(
QueryMxassetDtsResponse querymxassetdtsresponse) {
this.querymxassetdtsresponse = querymxassetdtsresponse;
}
/** **/
public static class QueryMxassetDtsResponse{
private String rsstart="";
private String rscount="";
private String rstotal="";
private Mxassetdtsset mxassetdtsset;
public String getRsstart() {
return rsstart;
}
public void setRsstart(String rsstart) {
this.rsstart = rsstart.toUpperCase();
}
public String getRscount() {
return rscount;
}
public void setRscount(String rscount) {
this.rscount = rscount.toUpperCase();
}
public String getRstotal() {
return rstotal;
}
public void setRstotal(String rstotal) {
this.rstotal = rstotal.toUpperCase();
}
public Mxassetdtsset getMxassetdtsset() {
return mxassetdtsset;
}
public void setMxassetdtsset(Mxassetdtsset mxassetdtsset) {
this.mxassetdtsset = mxassetdtsset;
}
/** **/
public static class Mxassetdtsset{
private List<Asset> asset;
public Mxassetdtsset() {
super();
}
public List<Asset> getAsset() {
return asset;
}
@SuppressWarnings("unchecked")
public void setAsset(List<Asset> asset) {
System.out.println(JSONArray.fromObject(asset).toString());
this.asset=JsonUtil.getDTOList(JSONArray.fromObject(asset).toString(),Asset.class);
}
/** **/
public static class Asset{
private String assetnum="";
private String location="";
private String description="";
private String siteid="";
private String status="";
private List<Assetspec> assetspec;
public String getAssetnum() {
return assetnum;
}
public void setAssetnum(String assetnum) {
this.assetnum = assetnum.toUpperCase();
}
public String getDescription() {
return description.toUpperCase();
}
public void setDescription(String description) {
this.description = description.toUpperCase();
}
public String getSiteid() {
return siteid;
}
public void setSiteid(String siteid) {
this.siteid = siteid.toUpperCase();
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status.toUpperCase();
}
public List<Assetspec> getAssetspec() {
return assetspec;
}
@SuppressWarnings("unchecked")
public void setAssetspec(List<Assetspec> assetspec) {
this.assetspec=JsonUtil.getDTOList(JSONArray.fromObject(assetspec).toString(),Assetspec.class);
}
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
/** **/
public static class Assetspec{
private String alnvalue="";
private String assetattrid="";
private String linearassetspecid="";
private String measureunitid;
private List<Assetattribute> assetattribute;
public String getMeasureunitid() {
return measureunitid;
}
public void setMeasureunitid(String measureunitid) {
this.measureunitid = measureunitid;
}
public String getAlnvalue() {
return alnvalue;
}
public void setAlnvalue(String alnvalue) {
this.alnvalue = alnvalue.toUpperCase();
}
public String getAssetattrid() {
return assetattrid;
}
public void setAssetattrid(String assetattrid) {
this.assetattrid = assetattrid.toUpperCase();
}
public String getLinearassetspecid() {
return linearassetspecid;
}
public void setLinearassetspecid(String linearassetspecid) {
this.linearassetspecid = linearassetspecid.toUpperCase();
}
public List<Assetattribute> getAssetattribute() {
return assetattribute;
}
public void setAssetattribute(List<Assetattribute> assetattribute) {
this.assetattribute=JsonUtil.getDTOList(JSONArray.fromObject(assetattribute).toString(),Assetattribute.class);
}
/** **/
public static class Assetattribute{
private String description="";
private String orgid="";
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description.toUpperCase();
}
public String getOrgid() {
return orgid;
}
public void setOrgid(String orgid) {
this.orgid = orgid.toUpperCase();
}
}
}
}
}
}
}
Json转实体的常用方法（工具类JsonUtil）：
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import net.sf.ezmorph.object.DateMorpher;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import net.sf.json.JsonConfig;
import net.sf.json.util.JSONUtils;
public class JsonUtil {
/**页面传至后台时，json数据在request的参数名称*/
public final static String JSON_ATTRIBUTE = "json";
public final static String JSON_ATTRIBUTE1 = "json1";
public final static String JSON_ATTRIBUTE2 = "json2";
public final static String JSON_ATTRIBUTE3 = "json3";
public final static String JSON_ATTRIBUTE4 = "json4";
/**
* 从一个JSON 对象字符格式中得到一个java对象，形如：
* {"id" : idValue, "name" : nameValue, "aBean" : {"aBeanId" : aBeanIdValue, ...}}
* @param object
* @param clazz
* @return
*/
public static Object getDTO(String jsonString, Class clazz){ //这里仅用到了这一个方法
JSONObject jsonObject = null;
try{
setDataFormat2JAVA();
jsonObject = JSONObject.fromObject(jsonString);
}catch(Exception e){
e.printStackTrace();
}
return JSONObject.toBean(jsonObject, clazz);
}
/**
* 从一个JSON 对象字符格式中得到一个java对象，其中beansList是一类的集合，形如：
* {"id" : idValue, "name" : nameValue, "aBean" : {"aBeanId" : aBeanIdValue, ...},
* beansList:[{}, {}, ...]}
* @param jsonString
* @param clazz
* @param map 集合属性的类型 (key : 集合属性名, value : 集合属性类型class) eg: ("beansList" : Bean.class)
* @return
*/
public static Object getDTO(String jsonString, Class clazz, Map map){
JSONObject jsonObject = null;
try{
setDataFormat2JAVA();
jsonObject = JSONObject.fromObject(jsonString);
}catch(Exception e){
e.printStackTrace();
}
return JSONObject.toBean(jsonObject, clazz, map);
}
/**
* 从一个JSON数组得到一个java对象数组，形如：
* [{"id" : idValue, "name" : nameValue}, {"id" : idValue, "name" : nameValue}, ...]
* @param object
* @param clazz
* @return
*/
public static Object[] getDTOArray(String jsonString, Class clazz){
setDataFormat2JAVA();
JSONArray array = JSONArray.fromObject(jsonString);
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);
}
return obj;
}
/**
* 从一个JSON数组得到一个java对象数组，形如：
* [{"id" : idValue, "name" : nameValue}, {"id" : idValue, "name" : nameValue}, ...]
* @param object
* @param clazz
* @param map
* @return
*/
public static Object[] getDTOArray(String jsonString, Class clazz, Map map){
setDataFormat2JAVA();
JSONArray array = JSONArray.fromObject(jsonString);
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, map);
}
return obj;
}
/**
* 从一个JSON数组得到一个java对象集合
* @param object
* @param clazz
* @return
*/
public static List getDTOList(String jsonString, Class clazz){
setDataFormat2JAVA();
JSONArray array = JSONArray.fromObject(jsonString);
List list = new ArrayList();
for(Iterator iter = array.iterator(); iter.hasNext();){
JSONObject jsonObject = (JSONObject)iter.next();
list.add(JSONObject.toBean(jsonObject, clazz));
}
return list;
}
/**
* 从一个JSON数组得到一个java对象集合，其中对象中包含有集合属性
* @param object
* @param clazz
* @param map 集合属性的类型
* @return
*/
public static List getDTOList(String jsonString, Class clazz, Map map){
setDataFormat2JAVA();
JSONArray array = JSONArray.fromObject(jsonString);
List list = new ArrayList();
for(Iterator iter = array.iterator(); iter.hasNext();){
JSONObject jsonObject = (JSONObject)iter.next();
list.add(JSONObject.toBean(jsonObject, clazz, map));
}
return list;
}
/**
* 从json HASH表达式中获取一个map，该map支持嵌套功能
* 形如：{"id" : "johncon", "name" : "小强"}
* 注意commons-collections版本，必须包含org.apache.commons.collections.map.MultiKeyMap
* @param object
* @return
*/
public static Map getMapFromJson(String jsonString) {
setDataFormat2JAVA();
JSONObject jsonObject = JSONObject.fromObject(jsonString);
Map map = new HashMap();
for(Iterator iter = jsonObject.keys(); iter.hasNext();){
String key = (String)iter.next();
map.put(key, jsonObject.get(key));
}
return map;
}
/**
* 从json数组中得到相应java数组
* json形如：["123", "456"]
* @param jsonString
* @return
*/
public static Object[] getObjectArrayFromJson(String jsonString) {
JSONArray jsonArray = JSONArray.fromObject(jsonString);
return jsonArray.toArray();
}
/**
* 把数据对象转换成json字符串
* DTO对象形如：{"id" : idValue, "name" : nameValue, ...}
* 数组对象形如：[{}, {}, {}, ...]
* map对象形如：{key1 : {"id" : idValue, "name" : nameValue, ...}, key2 : {}, ...}
* @param object
* @return
*/
/*public static String getJSONString(Object object) throws Exception{
String jsonString = null;
//日期值处理器
JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(java.util.Date.class, new JsonDateValueProcessor());
if(object != null){
if(object instanceof Collection || object instanceof Object[]){
jsonString = JSONArray.fromObject(object, jsonConfig).toString();
}else{
jsonString = JSONObject.fromObject(object, jsonConfig).toString();
}
}
return jsonString == null ? "{}" : jsonString;
} */
private static void setDataFormat2JAVA(){
//设定日期转换格式
JSONUtils.getMorpherRegistry().registerMorpher(new DateMorpher(new String[] {"yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss"}));
}
public static void main(String[] arg) throws Exception{
String s = "{status : 'success'}";
// System.out.println(" object : " + JsonUtil.getJSONString(s));
String mode1S="{id:'ada',name:'asdfa',addr:'asdfadfadsfadsf'}";
// Model1 model1=(Model1)JsonUtil.getDTO(mode1S, Model1.class);
// System.out.println(model1.toString());
//
// String model2S="{id:'ada',name:'asdfa',addr:'asdfadfadsfadsf',model3:{id:'12',name:'name',addr:'addr'}}";
// Model2 model2=(Model2)JsonUtil.getDTO(model2S, Model2.class);
// System.out.println(model2.toString());
}
}
在测试类中，应该这样写：
String equipJson = //Json字符串;
equipJson=equipJson.toLowerCase();
EquipRemoteData equipRemoteData=(EquipRemoteData) JsonUtil.getDTO(equipJson,new EquipRemoteData().getClass());
List<Asset> lsAsset=equipRemoteData.getQuerymxassetdtsresponse().getMxassetdtsset().getAsset();
到这里就算转换结束了。
这里的所有代码都非我所写，是摘录别人的。