FastJson2 在toString过程中的内存溢出问题

   String GLEO = JSON.toJSONString(GLEOArray);
   String PLEO = PLEOArray.toString();
   String ILEO = ILEOArray.toString();
   String fac = facArray.toString();
   String terminal = terminalArray.toString();

最近需要处理一部分的czml文件，上面的代码就是在将处理好的JSONArray对象转换为字符串方便存储但是会在转换过程中爆错内存溢出

Exception in thread "main" java.lang.OutOfMemoryError
	at com.alibaba.fastjson2.JSONWriterUTF16.ensureCapacity(JSONWriterUTF16.java:1564)
	at com.alibaba.fastjson2.JSONWriterUTF16.writeDecimal(JSONWriterUTF16.java:1289)
	at com.alibaba.fastjson2.writer.ObjectWriterImplList.write(ObjectWriterImplList.java:314)
	at com.alibaba.fastjson2.writer.ObjectWriterImplMap.write(ObjectWriterImplMap.java:548)
	at com.alibaba.fastjson2.writer.ObjectWriterImplMap.write(ObjectWriterImplMap.java:548)
	at com.alibaba.fastjson2.writer.ObjectWriterImplList.write(ObjectWriterImplList.java:366)
	at com.alibaba.fastjson2.JSON.toJSONString(JSON.java:2756)
	at org.example.Main.main(Main.java:404)

经过排查发现是FastJson2的tostring默认情况下单对象最大支持64M 所以需要使用到Feature来配置序列化

 // 将 JSON 数组转换为字符串
            String GLEO = JSON.toJSONString(GLEOArray, JSONWriter.Feature.LargeObject);
            String PLEO = JSON.toJSONString(PLEOArray, JSONWriter.Feature.LargeObject);
            String ILEO = JSON.toJSONString(ILEOArray, JSONWriter.Feature.LargeObject);
            String fac = JSON.toJSONString(facArray, JSONWriter.Feature.LargeObject);
            String terminal = JSON.toJSONString(terminalArray, JSONWriter.Feature.LargeObject);