我想问下这是什么原因造成的内存溢出

JsonReader 流沒有關閉的話，一直打開open操作就會導致內存溢出，
以前項目遇到過這種情況。

http://outofmemory.cn/c/java-outOfMemoryError

集合数据太大了吧 数据量较多的时候复制用System.arraycopy()

SpringBuffer后面添加数据 的时候数值限制有问题吧

这应该是有死循环,把代码贴出来

这是这个累的所有代码

/**

• Json解析工具
  */
  public class ResponseUtils {

  private Gson gson = new GsonBuilder()
  .setLenient()
  .registerTypeAdapter(BaseAlertEntity.class,new BaseAlertModuleAdapter())
  .create();
  private JsonObject jsonObject;
  private String jsonStr;

  public boolean isSuccess() {
  if (jsonObject == null || jsonObject.get("success") == null) {
  return false;
  }
  return jsonObject.get("success").getAsBoolean();
  }

  public ResponseUtils(String jsonStr) {
  super();
  this.jsonStr = jsonStr;
  String trimJsonStr = "";
  if (jsonStr != null) {
  trimJsonStr = jsonStr.trim();
  }
  JsonReader reader = new JsonReader(new StringReader(trimJsonStr));
  reader.setLenient(true);
  try {
  jsonObject = gson.fromJson(reader, JsonObject.class);
  } catch (Exception e) {
  e.printStackTrace();
  jsonObject = null;
  }
  }

  public boolean isExipired() {
  if (jsonObject == null || jsonObject.get("code") == null) {
  return true;
  }
  return jsonObject.get("code").getAsInt() == 600;
  }

  public int getResponseCode() {
  return jsonObject.get("code").getAsInt();
  }

  public T onFailedModel(Class faild) {
  if (jsonObject == null || jsonObject.get("result") == null) {
  return null;
  }
  JsonReader reader = new JsonReader(new StringReader(jsonObject.get("result").toString()));
  reader.setLenient(true);
  try {
  return gson.fromJson(reader, faild);
  } catch (Exception e) {
  e.printStackTrace();
  return null;
  }
  }

  /**

  • 不是数组的泛型 */ public T onSuccessModel(Class success) { if (jsonObject == null || jsonObject.get("result") == null) { return null; } JsonReader reader = new JsonReader(new StringReader(jsonObject.get("result").toString())); reader.setLenient(true); try { return gson.fromJson(reader, success); } catch (Exception e) { e.printStackTrace(); return null; } }

  /**

  • 带数组的泛型 */ public T onSuccessModel(Type typeOfT) { if (jsonObject == null || jsonObject.get("result") == null) { return null; } JsonReader reader = new JsonReader(new StringReader(jsonObject.get("result").toString())); reader.setLenient(true); try { return gson.fromJson(reader, typeOfT); } catch (Exception e) { e.printStackTrace(); Log.e("JsonFormatError", jsonObject.get("result").toString()); return null; } }

  /**

  • Deserialize a json to a arrayList */ public ArrayList deserializeToList(Class clazz) { if (jsonObject == null || jsonObject.get("result") == null) { return null; } JsonReader reader = new JsonReader(new StringReader(jsonObject.get("result").toString())); reader.setLenient(true); try { Type type = new ListParameterizedType(clazz); return gson.fromJson(reader, type); } catch (Exception e) { e.printStackTrace(); Log.e("JsonFormatError", jsonObject.get("result").toString()); return null; } }

  public ArrayList deserializeToList(Class clazz,String json) {
  JsonReader reader = new JsonReader(new StringReader(json));
  reader.setLenient(true);
  try {
  Type type = new ListParameterizedType(clazz);
  return gson.fromJson(reader, type);
  } catch (Exception e) {
  e.printStackTrace();
  return null;
  }
  }

}

好像是JsonReader 流没有关闭

推荐你用Eclipse Memory Analyzer，这个插件可以查看到底是哪里出了问题。