英文:
Java Spring WebClient how to get atribute from body response and set to a given class?
问题
以下是翻译好的内容：
我正在尝试使用一个给定的API，该API返回一个类似这样的响应体：
"access_token": "xkeo94s4qviHSTDIuTCbgRQSeNfrrMamiCN0w6wu",
"token_type": "Bearer",
"expires_in": 9600,
"refresh_token": "PpF0LfLPmdsm9FJFu4YmDBPENqTwGQIqQjw8MqOP"
因此我创建了以下类：
@JsonIgnoreProperties(ignoreUnknown = true)
public class EHTLToken {
private String access_token;
private String token_type;
private String expires_in;
private String refresh_token;
// getters and setters
}
我可以发起请求并使用以下代码获得预期的响应体：
@Test
void getTokenTest() {
String uri = "/oauth/access_token";
EHTLClient client = new EHTLClient();
Credenciais credenciais = new Credenciais();
RequestHeadersSpec<?> request = client.getWebClient().method(HttpMethod.POST).uri(uri).bodyValue(credenciais);
String response = request.retrieve().bodyToMono(String.class).block();
System.out.println(response);
}
但是，当我尝试将响应解析为 EHTLToken.class 并获取其属性时，该类会被实例化，但所有属性均为null。以下是我的尝试：
@Test
void getTokenTest() {
String uri = "/oauth/access_token";
EHTLClient client = new EHTLClient();
Credenciais credenciais = new Credenciais();
RequestHeadersSpec<?> request = client.getWebClient().method(HttpMethod.POST).uri(uri).bodyValue(credenciais);
EHTLToken response = request.retrieve().bodyToMono(EHTLToken.class).block();
Assert.notNull(response, "Class is null.");
Assert.notNull(response.getAccessToken(), "Token is null.");
}
我的第二个测试失败了：
java.lang.IllegalArgumentException: Token is null.
at org.springframework.util.Assert.notNull(Assert.java:198)
at br.com.ribeiro.fernando.ehtl.EhtlApplicationTests.getTokenTest(EhtlApplicationTests.java:27)
我是否误解了 bodyToMono() 的概念？请问如何使用 WebClient 从响应体中获取属性并设置给定的类呢？
谢谢。
英文:
I'm trying to consume a given API that returns a body response like this:
"access_token": "xkeo94s4qviHSTDIuTCbgRQSeNfrrMamiCN0w6wu",
"token_type": "Bearer",
"expires_in": 9600,
"refresh_token": "PpF0LfLPmdsm9FJFu4YmDBPENqTwGQIqQjw8MqOP"
So I created the following class:
@JsonIgnoreProperties(ignoreUnknown = true)
public class EHTLToken {
private String access_token;
private String token_type;
private String expires_in;
private String refresh_token;
// getters and setters
I can make a request and get the expected response body with the following code:
@Test
void getTokenTest() {
String uri = "/oauth/access_token";
EHTLClient client = new EHTLClient();
Credenciais credenciais = new Credenciais();
RequestHeadersSpec<?> request = client.getWebClient().method(HttpMethod.POST).uri(uri).bodyValue(credenciais);
String response = request.retrieve().bodyToMono(String.class).block();
System.out.println(response);
}
But when I try to retrieve the response to the EHTLToken.class and get its atributes, the class is is instantiated, but all it's atributes are null. Here's what I'm trying:
@Test
void getTokenTest() {
String uri = "/oauth/access_token";
EHTLClient client = new EHTLClient();
Credenciais credenciais = new Credenciais();
RequestHeadersSpec<?> request = client.getWebClient().method(HttpMethod.POST).uri(uri).bodyValue(credenciais);
EHTLToken response = request.retrieve().bodyToMono(EHTLToken.class).block();
Assert.notNull(response, "Class is null.");
Assert.notNull(response.getAccessToken(), "Token is null.");
}
My second test fails:
java.lang.IllegalArgumentException: Token is null.
at org.springframework.util.Assert.notNull(Assert.java:198)
at br.com.ribeiro.fernando.ehtl.EhtlApplicationTests.getTokenTest(EhtlApplicationTests.java:27)
Am I misunderstanding the concept of bodyToMono()? How can I get atributes from a response body and set to a given class with WebClient please?
Regards.
答案1
得分: 0
对于遇到这个问题的任何人，我的问题是REST API返回的响应如下：
"access_token": "xkeo94s4qviHSTDIuTCbgRQSeNfrrMamiCN0w6wu",
"token_type": "Bearer",
"expires_in": 9600,
"refresh_token": "PpF0LfLPmdsm9FJFu4YmDBPENqTwGQIqQjw8MqOP"
我创建了以下属性的POJO：
private String access_token;
private String token_type;
private String expires_in;
private String refresh_token;
当我将我的POJO更改为以下内容时，我的测试成功了：
@JsonIgnoreProperties(ignoreUnknown = true)
public class EHTLToken {
@JsonProperty("access_token")
private String accessToken;
@JsonProperty("token_type")
private String tokenType;
@JsonProperty("expires_in")
private String expiresIn;
@JsonProperty("refresh_token")
private String refreshToken;
}
我按照约定重新命名了属性，并手动使用了@JsonProperty添加了JSON属性。
英文:
For anyone having this issue, my problem is that the REST API gives a response like this:
"access_token": "xkeo94s4qviHSTDIuTCbgRQSeNfrrMamiCN0w6wu",
"token_type": "Bearer",
"expires_in": 9600,
"refresh_token": "PpF0LfLPmdsm9FJFu4YmDBPENqTwGQIqQjw8MqOP"
And I created the POJO with the following attributes:
private String access_token;
private String token_type;
private String expires_in;
private String refresh_token;
My test worked when I changed my POJO to this:
@JsonIgnoreProperties(ignoreUnknown = true)
public class EHTLToken {
@JsonProperty("access_token")
private String accessToken;
@JsonProperty("token_type")
private String tokenType;
@JsonProperty("expires_in")
private String expiresIn;
@JsonProperty("refresh_token")
private String refreshToken;
I renamed the attributes as convention, and manually added the json property with the @JsonProperty.
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