GSOn错误在分析JSON响应时,预期有一个字符串,但是是BEGIN_OBJECT [英] GSOn error Expected a string but was BEGIN_OBJECT when parsing JSON response
本文介绍了GSOn错误在分析JSON响应时,预期有一个字符串,但是是BEGIN_OBJECT的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我从API中检索JSON结果:
[{
oid:axd7wtlk6xd2fbwlc5wk,
id:aazzzza,
name:aazzaa,
logo:{
type:0,
data :iVB ............. 5CYII =
,
时间戳:1438608571013,
电子邮件:contact@azzaa.net ,
modified:test,
url:http://www.azzaa.net
},
{
oid :quj3dzygfwygl5uxsbxk,
name:KZZZ,
modified:test,
timestamp:1438854099511,
id:kess
},...]
但是当我尝试映射到客户对象I得到错误预期一个字符串,但是BEGIN_OBJECT
:
response = webService .RequestGet(url,header);
result = null;
尝试{
result = new JSONArray(response);
Utils.LogWarning(response);
} catch(JSONException e){
Utils.LogError(无法加载json响应,e);
}
键入customerType = new TypeToken< Collection< Customer>>(){
} .getType();
ArrayList< Customer> alCustomers = null;
alCustomers = new Gson()。fromJson(result.toString(),customerType);
这是我的 Customer
class:
public class Customer implements Serializable {
private String id =;
private String name =;
private String email =;
private String url =;
private String address =;
private String stamp =;
//私有瞬态String logo =;
私人长时间戳= 0L;
private String modified =;
...
}
<我已经通过了很多关于这个问题的答案,我也为其他类型的对象,但我找不到一个工作的解决方案。
解决方案
使用JSON结果的值创建一个模式,比如
public class Customer {
private String oid;
私人字符串ID;
私人字符串名称;
private String timestamp;
私人字符串电子邮件;
私人字符串修改;
私人字符串网址;
public String getOid(){
return oid;
}
public void setOid(String oid){
this.oid = oid;
}
public String getId(){
return id;
}
public void setId(String id){
this.id = id;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public String getTimestamp(){
return timestamp;
}
public void setTimestamp(String timestamp){
this.timestamp = timestamp;
}
public String getEmail(){
return email;
}
public void setEmail(String email){
this.email = email;
}
public String getModified(){
return modified;
}
public void setModified(String modified){
this.modified = modified;
}
public String getUrl(){
return url;
}
public void setUrl(String url){
this.url = url;
}
public Logo getLogo(){
return logo;
}
public void setLogo(Logo logo){
this.logo = logo;
}
私人标志徽标;
}
public class Logo {
private int type;
public String getData(){
返回数据;
}
public void setData(String data){
this.data = data;
}
public int getType(){
返回类型;
}
public void setType(int type){
this.type = type;
}
私有字符串数据;
}
Gson gson = new Gson();
Type listType = new TypeToken< List< Customer>>(){}。getType();
列表< Customer> customer =(List< Customer>)gson.fromJson(jsonOutput,listType);
I retrieve a JSON result from an API :
[{
"oid": "axd7wtlk6xd2fbwlc5wk",
"id": "aazzzza",
"name": "aazzaa",
"logo": {
"type": 0,
"data": "iVB.............5CYII="
},
"timestamp": 1438608571013,
"email": "contact@azzaa.net",
"modified": "test",
"url": "http://www.azzaa.net"
},
{
"oid": "quj3dzygfwygl5uxsbxk",
"name": "KZZZ",
"modified": "test",
"timestamp": 1438854099511,
"id": "kess"
},...]
but when I try to map to a customer object I get the error Expected a string but was BEGIN_OBJECT
:
response = webService.RequestGet(url, header);
result = null;
try {
result = new JSONArray(response);
Utils.LogWarning(response);
} catch (JSONException e) {
Utils.LogError("Could not load json response", e);
}
Type customerType = new TypeToken<Collection<Customer>>() {
}.getType();
ArrayList<Customer> alCustomers = null;
alCustomers = new Gson().fromJson(result.toString(), customerType);
Here is my Customer
class :
public class Customer implements Serializable {
private String id = "";
private String name = "";
private String email = "";
private String url = "";
private String address = "";
private String stamp = "";
//private transient String logo = "";
private long timestamp = 0L;
private String modified = "";
...
}
I have been through a lot of answers regarding this problem that I have also for other types of objects, but I can't find a working solution.
解决方案
Create a modal with the values of JSON result like
public class Customer {
private String oid;
private String id;
private String name;
private String timestamp;
private String email;
private String modified;
private String url;
public String getOid() {
return oid;
}
public void setOid(String oid) {
this.oid = oid;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getTimestamp() {
return timestamp;
}
public void setTimestamp(String timestamp) {
this.timestamp = timestamp;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getModified() {
return modified;
}
public void setModified(String modified) {
this.modified = modified;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public Logo getLogo() {
return logo;
}
public void setLogo(Logo logo) {
this.logo = logo;
}
private Logo logo;
}
public class Logo {
private int type;
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
public int getType() {
return type;
}
public void setType(int type) {
this.type = type;
}
private String data;
}
Gson gson = new Gson();
Type listType = new TypeToken<List<Customer>>(){}.getType();
List<Customer> customer= (List<Customer>) gson.fromJson(jsonOutput, listType);
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