怎样使用fastJson发送数组格式的Json数据

场景

之前要发送的json数据：

{"PrintContent":"CAB1DM1152CJ@2097812420006@20181010,CAB1DM1152CJ@2097812420007@20181010,CAB1DM1152CJ@2097812420008@20181010,CAB1DM1152CJ@2097812420009@20181010"}

要转换的json数据格式：

{"PrintContent":["CAB1DM1152CJ@2097812420006@20181010","CAB1DM1152CJ@2097812420007@20181010","CAB1DM1152CJ@2097812420008@20181010","CAB1DM1152CJ@2097812420009@20181010"]}

实现

项目中引入fastJson依赖

<dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.24</version>
 </dependency>

转换之前的转换JSON实现

for (String s:qrCodeList
                        ) {
                    finalBarCode+=s+",";
                }
finalBarCode=finalBarCode.substring(0,finalBarCode.length()-1);
 Map map=new HashMap();
 map.put("Flag","2");
 map.put("PrintContent",finalBarCode);
 String  param= JSON.toJSONString(map);

转换之后的实现

for (String s:qrCodeList
                        ) {
                    finalBarCode+=s+",";
                }
finalBarCode=finalBarCode.substring(0,finalBarCode.length()-1);
 Map map=new HashMap();
 map.put("Flag","2");
 map.put("PrintContent",qrCodeList);
 String  param= JSON.toJSONString(map);