tring.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;requestSign(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;tenantId,
                          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;method,
                          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/St