Java 如何将头添加到OkHttp请求拦截器?
我将此拦截器添加到OkHttp客户端:Java 如何将头添加到OkHttp请求拦截器?,java,android,http-headers,retrofit,okhttp,Java,Android,Http Headers,Retrofit,Okhttp,我将此拦截器添加到OkHttp客户端: public class RequestTokenInterceptor implements Interceptor { @Override public Response intercept(Chain chain) throws IOException { Request request = chain.request(); // Here where we'll try to refresh token. // with an retr
public class RequestTokenInterceptor implements Interceptor {
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
// Here where we'll try to refresh token.
// with an retrofit call
// After we succeed we'll proceed our request
Response response = chain.proceed(request);
return response;
}
}
如何在拦截器中向请求添加标题
我尝试了此操作,但我犯了错误,在创建新请求时丢失了请求:
public class RequestTokenInterceptor implements Interceptor {
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request();
Request newRequest;
try {
Log.d("addHeader", "Before");
String token = TokenProvider.getInstance(mContext).getToken();
newRequest = request.newBuilder()
.addHeader(HeadersContract.HEADER_AUTHONRIZATION, O_AUTH_AUTHENTICATION + token)
.addHeader(HeadersContract.HEADER_CLIENT_ID, CLIENT_ID)
.build();
} catch (Exception e) {
Log.d("addHeader", "Error");
e.printStackTrace();
return chain.proceed(request);
}
Log.d("addHeader", "after");
return chain.proceed(newRequest);
}
}
请注意,我知道在创建请求时可以添加头,如下所示:
Request request = new Request.Builder()
.url("https://api.github.com/repos/square/okhttp/issues")
.header("User-Agent", "OkHttp Headers.java")
.addHeader("Accept", "application/json; q=0.5")
.addHeader("Accept", "application/vnd.github.v3+json")
.build();
但它不符合我的需要。我需要它在拦截器中。如果您使用的是改型库,那么您可以使用
@header
注释直接将头传递给api请求,而无需使用拦截器。下面的示例演示了如何将头添加到改装api请求中
@POST(apiURL)
void methodName(
@Header(HeadersContract.HEADER_AUTHONRIZATION) String token,
@Header(HeadersContract.HEADER_CLIENT_ID) String token,
@Body TypedInput body,
Callback<String> callback);
@POST(apirl)
无效方法名(
@Header(HeadersContract.Header\u Authonization)字符串标记,
@Header(HeadersContract.Header\u CLIENT\u ID)字符串标记,
@主体类型输入主体,
回调(回调);
希望有帮助 最后,我这样添加了标题:
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request();
Request newRequest;
newRequest = request.newBuilder()
.addHeader(HeadersContract.HEADER_AUTHONRIZATION, O_AUTH_AUTHENTICATION)
.addHeader(HeadersContract.HEADER_X_CLIENT_ID, CLIENT_ID)
.build();
return chain.proceed(newRequest);
}
还有一种方法可以在OkHttp3(目前最新版本)中添加拦截器,即将拦截器添加到Okhttp构建器中
okhttpBuilder.networkInterceptors().add(chain -> {
//todo add headers etc to your AuthorisedRequest
return chain.proceed(yourAuthorisedRequest);
});
最后从这个生成器构建okHttpClient
OkHttpClient client = builder.build();
你可以这样做
private String GET(String url, Map<String, String> header) throws IOException {
Headers headerbuild = Headers.of(header);
Request request = new Request.Builder().url(url).headers(headerbuild).
build();
Response response = client.newCall(request).execute();
return response.body().string();
}
private String GET(字符串url,映射头)抛出IOException{
Headers headerbuild=Headers.of(header);
Request Request=newrequest.Builder().url(url).headers(headerbuild)。
build();
Response=client.newCall(request.execute();
返回响应.body().string();
}
以下是一个有用的
面对其他样本的类似问题,这个Kotlin类为我工作
import okhttp3.Interceptor
import okhttp3.Response
class CustomInterceptor : Interceptor {
override fun intercept(chain: Interceptor.Chain) : Response {
val request = chain.request().newBuilder()
.header("x-custom-header", "my-value")
.build()
return chain.proceed(request)
}
}
package com.example.network.interceptors;
导入androidx.annotation.NonNull;
导入java.io.IOException;
导入java.util.Map;
进口okhttp3.拦截器;
导入okhttp3.请求;
导入okhttp3.响应;
公共类RequestHeaderNetworkInterceptor实现拦截器{
私有最终地图标题;
public RequestHeaderNetworkInterceptor(@NonNull映射头){
this.headers=标题;
}
@非空
@凌驾
公共响应拦截(链)引发IOException{
Request.Builder=chain.Request().newBuilder();
for(Map.Entry头:headers.entrySet()){
if(header.getKey()==null | | header.getKey().trim().isEmpty()){
继续;
}
if(header.getValue()==null | | header.getValue().trim().isEmpty()){
removeHeader(header.getKey());
}否则{
builder.header(header.getKey(),header.getValue());
}
}
返回链。继续(builder.build());
}
}
用法示例:
httpClientBuilder.networkInterceptors().add(new RequestHeadersNetworkInterceptor(new HashMap<String, String>()
{
{
put("User-Agent", getUserAgent());
put("Accept", "application/json");
}
}));
httpClientBuilder.networkInterceptors().add(新的请求头NetworkInterceptor(新的HashMap)()
{
{
put(“用户代理”,getUserAgent());
put(“接受”、“应用程序/json”);
}
}));
这对我很有用:
class JSONHeaderInterceptor : Interceptor {
override fun intercept(chain: Interceptor.Chain) : Response {
val request = chain.request().newBuilder()
.header("Content-Type", "application/json")
.build()
return chain.proceed(request)
}
}
Kotlin版本:
fun okHttpClientFactory():OkHttpClient{
返回OkHttpClient().newBuilder()
.addInterceptor{chain->
chain.request().newBuilder()
.addHeader(头身份验证、O\U身份验证)
.build()
.let(链::继续)
}
.build()
}
您的拦截器看起来不错。什么不起作用?我知道,但我有一个方法来获取名为:getToken()的令牌,该令牌在线程上有wait。所以,如果我在OkHttp拦截器中调用它,它将在改造线程中运行,我不需要担心线程问题。出于某种原因,这不会将头添加到我的请求中?!我正在使用okHttp.Builder和networkInterceptors().add(interceptor)与此答案中的代码相同,但没有添加头。如何为youtube请求添加头?它是一个packageName和您的API密钥,然后通过.addheader(params1、params2)传递
@RoCk你可以有不同的RESTClient,它们有不同的头配置。这不是一个拦截器。是的,没有注意到关于add*Network*interceptor
的部分,而不是addInterceptor
让我费了几个小时的劲:)
httpClientBuilder.networkInterceptors().add(new RequestHeadersNetworkInterceptor(new HashMap<String, String>()
{
{
put("User-Agent", getUserAgent());
put("Accept", "application/json");
}
}));
client = new OkHttpClient();
Request request = new Request.Builder().header("authorization", token).url(url).build();
MyWebSocketListener wsListener = new MyWebSocketListener(LudoRoomActivity.this);
client.newWebSocket(request, wsListener);
client.dispatcher().executorService().shutdown();
class JSONHeaderInterceptor : Interceptor {
override fun intercept(chain: Interceptor.Chain) : Response {
val request = chain.request().newBuilder()
.header("Content-Type", "application/json")
.build()
return chain.proceed(request)
}
}
fun provideHttpClient(): OkHttpClient {
val okHttpClientBuilder = OkHttpClient.Builder()
okHttpClientBuilder.addInterceptor(JSONHeaderInterceptor())
return okHttpClientBuilder.build()
}