在ApacheHTTP组件4类org.apache.http.impl.auth.BasicScheme中，我注意到该方法:publicstaticHeaderauthenticate(finalCredentialscredentials,finalStringcharset,finalbooleanproxy)已弃用，信息如下:/***ReturnsabasicAuthorizationheadervalueforthegiven*{@linkCredentials}andcharset.**@paramcredentialsThecredentialstoencode.*@par