当我尝试序列化结果时,获得nullpointerexception:java.lang.nullpoInterException:尝试调用虚拟方法'byte [] com.squareup.wire.protoadapter.encode.encode(java.lang.object('null对象参考
在ObjectOutputStream之前尝试使用BufferedOutputStream
尝试搜索相同的错误
用于序列化的代码:
"结果"是使用电线编译器的自动生成的类。
result.tostring((返回字符串(因此不是null(
如果将整个"结果"保存为纯文本,则将成为一个5MB文件。
public static void serialize(File fullPath, Result result){
try {
// System.out.println(result.toString());
FileOutputStream fileOut = new FileOutputStream(fullPath);
ObjectOutputStream out = new ObjectOutputStream(fileOut);
out.writeObject(result); // NullPointerException mentioned above
out.close();
fileOut.close();
} catch (IOException i) {
i.printStackTrace();
}
}
改造实例:
OkHttpClient client = new OkHttpClient.Builder()
.connectTimeout(1, TimeUnit.MINUTES)
.readTimeout(1, TimeUnit.MINUTES)
.retryOnConnectionFailure(true)
.build();
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.client(client)
.addConverterFactory(ProtoConverterFactory.createWithRegistry(ExtensionRegistry.newInstance()))
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build();
SchemaAPI schemaAPI = retrofit.create(SchemaAPI.class);
This are the contents of the file at fullpath: ’
which doesnt seem to be the entire result.
ArrayList<ITEMS> itemsList = new ArrayList<>();
FileOutputStream fileOut = new FileOutputStream(schema);
ObjectOutputStream out = new ObjectOutputStream(fileOut);
for(Result.ITEMS item:result.items){
itemsList.add(item.newBuilder().build());
}
out.writeObject(itemsList);
out.close();
fileOut.close();