JSON: property "xxx" has no getter method in class "" _JavaScript

JSON: property "xxx" has no getter method in class "..."

Exception in thread "main" net.sf.json.JSONException: java.lang.NoSuchMethodException: Property 'name' has no getter method
解决:声明bean为public class xxx,必须是public,我用默认类型(class xxx)都不行

json-lib.jar开发包使用:

依赖包:
commons-beanutils.jar;
commons-httpclient.jar;
commons-lang.jar;
ezmorph.jar;不少人使用时会提示net.sf.ezmorph.xxx找不到,就是缺这个:
morph-1.0.1.jar

相关链接:
http://json-lib.sourceforge.net/
http://ezmorph.sourceforge.net/
http://morph.sourceforge.net/

使用过程中问题:
1,把bean转化为json格式时老提示如下错误:
Exception in thread "main" net.sf.json.JSONException: java.lang.NoSuchMethodException: Property 'name' has no getter method
解决:声明bean为public class xxx,必须是public,我用默认类型(class xxx)都不行

2,Exception in thread "main" java.lang.NoSuchMethodError: org.apache.commons.lang.ArrayUtils.toObject([C)[Ljava/lang/Character;
原因:定义属性如下:private char[] options = new char[] { 'a', 'f' };好像不能处理这种类型的

3, private String func1 = "function(i){ return this.options[i]; }";
?? 和
?? private JSONFunction func2 = new JSONFunction(new String[] { "i" },
???? "return this.options[i];");
?? 转换后显示结果差不多:
?? {"func1":function(i){ return this.options[i];,"func2":function(i){ return this.options[i]; }}

测试类:

import?java.util.ArrayList;??
import?java.util.HashMap;??
import?java.util.List;??
import?java.util.Map;??
??
import?net.sf.json.JSONArray;??
import?net.sf.json.JSONObject;??
??
public?class?Json?{??
????public?static?void?main(String[]?args)?{??
????????Json?j?=?new?Json();??
????????j.bean2json();??
????}??
??
????public?void?arr2json()?{??
????????boolean[]?boolArray?=?new?boolean[]?{?true,?false,?true?};??
????????JSONArray?jsonArray?=?JSONArray.fromObject(boolArray);??
????????System.out.println(jsonArray);??
????????//?prints?[true,false,true]??
????}??
??
????public?void?list2json()?{??
????????List?list?=?new?ArrayList();??
????????list.add("first");??
????????list.add("second");??
????????JSONArray?jsonArray?=?JSONArray.fromObject(list);??
????????System.out.println(jsonArray);??
????????//?prints?["first","second"]??
????}??
??
????public?void?createJson()?{??
????????JSONArray?jsonArray?=?JSONArray.fromObject("['json','is','easy']");??
????????System.out.println(jsonArray);??
????????//?prints?["json","is","easy"]??
????}??
??
????public?void?map2json()?{??
????????Map
????????map.put("name",?"json");??
????????map.put("bool",?Boolean.TRUE);??
????????map.put("int",?new?Integer(1));??
????????map.put("arr",?new?String[]?{?"a",?"b"?});??
????????map.put("func",?"function(i){?return?this.arr[i];?}");??
??
????????JSONObject?json?=?JSONObject.fromObject(map);??
????????System.out.println(json);??
????????//?prints??
????????//?["name":"json","bool":true,"int":1,"arr":["a","b"],"func":function(i){??
????????//?return?this.arr[i];?}]??
????}??
??
????public?void?bean2json()?{??
????????JSONObject?jsonObject?=?JSONObject.fromObject(new?MyBean());??
????????System.out.println(jsonObject);??
????????/*?
?????????*?prints??
?????????*?{"func1":function(i){?return?this.options[i];?
?????????*?},"pojoId":1,"name":"json","func2":function(i){?return?
?????????*?this.options[i];?}}?
?????????*/??
????}??
??
????public?void?json2bean()?{??
????????String?json?=?"{name=\"json2\",func1:true,pojoId:1,func2:function(a){?return?a;?},options:['1','2']}";??
????????JSONObject?jb?=?JSONObject.fromString(json);??
????????JSONObject.toBean(jb,?MyBean.class);??
????????System.out.println();??
????}??
}??

操作的bean:

import?net.sf.json.JSONFunction;??
??
public?class?MyBean?{??
????private?String?name?=?"json";??
????private?int?pojoId?=?1;??
????//?private?char[]?options?=?new?char[]?{?'a',?'f'?};??
????private?String?func1?=?"function(i){?return?this.options[i];?}";??
????private?JSONFunction?func2?=?new?JSONFunction(new?String[]?{?"i"?},??
????????????"return?this.options[i];");??
??
????//?getters?&?setters??
????......??
}??

题外话: 这个我对json-lib包的初次尝试,希望对大家有所帮助,另外大家有谁用过其它处理json的开发包,提出来,大家探讨一下~!!!!

1 楼宋建勇 2012-07-15