fastjson对String、JSONObject、JSONArray相互转换

• String——>>>JSONArray

String st = "[{name:Tim,age:25,sex:male},{name:Tom,age:28,sex:male},{name:Lily,age:15,sex:female}]";
JSONArray tableData = JSONArray.parseArray(st);

• JSONArray——>>>JSONObject

JSONObject rowData = new JSONObject();
for(int i;i<tableData.length();i++){
    rowData = tableData.getJSONObject[i];
}

• String——>>>JSONObject

String st = "{name:Tim,age:25,sex:male}";
JSONObject rowData = JSONObject.parseObject(st);

• JSONObject——>>>JSONArray

JSONObject rowData = {info:
                            [
                                {
                                    name:Tim,
                                    age:25,
                                    sex:male
                                },{
                                    name:Tom,
                                    age:28,
                                    sex:male
                                },{
                                    name:Lily,
                                    age:15,
                                    sex:female
                                }
                            ]
                        };
JSONArry tableData = rowData.get("info");

原文：https://blog.csdn.net/java_doctor/article/details/82220815