如何使用Angular 5 HttpClient读取完整的响应标头

Question

我在Angular 5中编写了服务，该服务使用HttpClient类向我的后端发出GET请求。

我的请求如下：

headers =  new HttpHeaders().set('Content-Type', 'application/json')
                             .set('X-XSRF-TOKEN', 'sdfhjsdgh');

          const options = ({ headers: headers});
          this.http.get('http://127.0.0.1:8080/api/v1/display', options)
         .filter(data => data.status === 200 || data.status === 206)
         .map((res) => this.success(res))
         .catch((res) => this.failure(res, service));

如何使用响应头？所以我可以检查状态码和所有其他内容。

非常感谢您的帮助。

Answer 1

$token = "eyJhbGciOiJSUzI1NiJ9.eyJyb2xlcyI6WyJST0xFX1VTRVIiXSwidXNlcm5hbWUiOiJqYWdhZHVAaHViaWktbmV0d29yay5jb20iLCJleHAiOjE1MzYxNTI0MDAsImlhdCI6MTUzNTU0NzYwMH0.B7gnfGdW1ijAIlo9xUI0DwkGaajQAQPBkRx4ChILXRNtpLdwgEl_9gvWdiidFbSXJseS8jslOfuAFUIWATmbNBoWVa3nc8SxkIrKI29xZuN6hB7R-63RH2BKsAVPsEjgTIJoqkkCrfrSum-_d3LEf36jcXqZb8M-GRKI477IwSDDwG_7YK5v0mu8N4TATXhN0tZGNYxp8Y27EI-g0Gmj9BIiobxnqVVoBWHN5J8d-UCrXRq94ifhEiQBxkG9r_eacMscB80n1VsiN2ouKH2kX-HRxRJmcgmydxvR7RcEW-P6koTxkaZJGO6mv7auSudTFlDENpwD4OD7gtn_wMUDS_OuN8WT7rZp8lwKY9f8J9fiGyq5J-8C_HmyjW-h8WhuJmTUaKhCZ-eLgDm4Vs2IQGYkHJEDFumnIZ607MAa1CW1ChAvurqvUqJ3G4TTN4wYqAHpSKz4y8SAMLjO91cedBPH6K5i9lh5htF-mW_htem7e5ornicU_djSccgHbxfXHQYTHCnqLp7-ONfl_p4nmhIEK0wcF0gkBXbIitzeTjy7C_uf_FV1sLPE5cY3PUP42DmHrG4PuXHLv_L1EjErkrpna7pChKA_TPeiZjqMcQoE70sZw8rr8KnRF2hpABdU_M2ZXOt_vF5-T8mLmKqs0LHxE089vVC3xsAh0mUr4FE";

$tokenParts = explode(".", $token);  
$tokenHeader = base64_decode($tokenParts[0]);
$tokenPayload = base64_decode($tokenParts[1]);
$jwtHeader = json_decode($tokenHeader);
$jwtPayload = json_decode($tokenPayload);
print $jwtPayload->username;