Java 如何使用Gson解析原始json数组包含null?
Json字符串Java 如何使用Gson解析原始json数组包含null?,java,android,json,gson,primitive,Java,Android,Json,Gson,Primitive,Json字符串 {"userName":null," msgArr":[null],"numrow":0} //String result 格森 我的班级 public String userName; public int[] msgArr; ... 错误堆栈 at java.lang.IllegalArgumentException: Primitive array can't take null values. at java.lang.reflect.Array.set(Array.
{"userName":null," msgArr":[null],"numrow":0} //String result
格森
我的班级
public String userName;
public int[] msgArr;
...
错误堆栈
at java.lang.IllegalArgumentException: Primitive array can't take null values.
at java.lang.reflect.Array.set(Array.java:406)
at com.google.gson.internal.bind.ArrayTypeAdapter.read(ArrayTypeAdapter.java:78)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
at com.google.gson.Gson.fromJson(Gson.java:803)
at com.google.gson.Gson.fromJson(Gson.java:768)
at com.google.gson.Gson.fromJson(Gson.java:717)
at com.google.gson.Gson.fromJson(Gson.java:689)
at com.test.dao.RequestBase.onPostExecute(RequestBase.java:79)
如果无法更改json字符串“msgArr=[null]”,如何避免此异常 user2507946在您的评论中有正确的答案
int
在Java中不可为空,但可以替换包装类Integer
来处理空值
范例
public String userName;
public Integer[] msgArr;
...
您是否尝试将
MyClass
msgArr更改为Integer[]
?是的,我很抱歉。我在手机上读到了你的问题,并在那里回答了。从电脑上看后,我误解了你原来的问题。我道歉。
public String userName;
public Integer[] msgArr;
...
Gson gson = new GsonBuilder
.serializeNulls()
.create();