fastjson --JSONObject 和JSONArray 转换

fastjson解析：
resultValue=
[
{
"total":1,
"saleLists":[
{
"categoryInfo":"测试父分类",
"id":12,
"vendor_code":0,
"brandInfo":"非龙品牌,",
}
]
}
]
第一步：解析完成以后{"total":1,"saleLists":[{"categoryInfo":"测试父分类","id":12,"vendor_code":0,"brandInfo":"非龙品牌,",}]}

JSONObjectjs=JSON.parseObject(JSON.parseArray(resultValue).get(0).toString());

第二步：解析完成后[{"categoryInfo":"测试父分类","id":12,"vendor_code":0,"brandInfo":"非龙品牌,",}]

JSONArrayjs2=JSON.parseArray(js.getString("saleLists").toString());

第三步：解析完成后{"categoryInfo":"测试父分类","id":12,"vendor_code":0,"brandInfo":"非龙品牌,",}

JSONObjectjsObj2=JSON.parseObject(js2.get(0).toString());

第四步：js2jsObj2.getString("id"),得到12