我想从我的对象生成一个JSON字符串:gson.toJson()中抛出StackOverflowError
Gson gson = new Gson();
String json = gson.toJson(item);
每次我尝试这样做,我得到这个错误:
14:46:40,236 ERROR [[BomItemToJSON]] Servlet.service() for servlet BomItemToJSON threw exception
java.lang.StackOverflowError
at com.google.gson.stream.JsonWriter.string(JsonWriter.java:473)
at com.google.gson.stream.JsonWriter.writeDeferredName(JsonWriter.java:347)
at com.google.gson.stream.JsonWriter.value(JsonWriter.java:440)
at com.google.gson.internal.bind.TypeAdapters$7.write(TypeAdapters.java:235)
at com.google.gson.internal.bind.TypeAdapters$7.write(TypeAdapters.java:220)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.write(ReflectiveTypeAdapterFactory.java:89)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.write(ReflectiveTypeAdapterFactory.java:200)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.write(TypeAdapterRuntimeTypeWrapper.java:68)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:96)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.write(CollectionTypeAdapterFactory.java:60)
at com.google.gson.Gson$FutureTypeAdapter.write(Gson.java:843)
这些都是我BomItem类的属性:我指
private int itemId;
private Collection<BomModule> modules;
private boolean deprecated;
private String partNumber;
private String description; //LOB
private int quantity;
private String unitPriceDollar;
private String unitPriceEuro;
private String discount;
private String totalDollar;
private String totalEuro;
private String itemClass;
private String itemType;
private String vendor;
private Calendar listPriceDate;
private String unitWeight;
private String unitAveragePower;
private String unitMaxHeatDissipation;
private String unitRackSpace;
属性enced BomModule类:
private int moduleId;
private String moduleName;
private boolean isRootModule;
private Collection<BomModule> parentModules;
private Collection<BomModule> subModules;
private Collection<BomItem> items;
private int quantity;
任何想法是什么原因导致这个错误?我该如何解决它?
如果你把一个对象实例放在gson里面的某个地方,可能会发生。 – 2015-11-24 10:12:18
异常失去的根本原因开始日志与'JsonWriter.java:473)',如何确定根本原因的Gson stackoverflow – Siddharth 2017-06-03 11:40:37