直接上代码

/**
*建立认证连接
**/
public OSClientV3 getOSClientV3(String tenantId,String userid,
                                     String password,String region){
        String url = "http://127.0.0.1:5000/v3";
        
        if (tenantId == null || tenantId.equals("")) {
            tenantId = "defaultTenantId";
        }
        OSClientV3 osv3 = OSFactory.builderV3().endpoint(url)
                                                 .credentials(userid, password)
                .scopeToProject(Identifier.byId(tenantId)).authenticate();
        if (region != null && !"".equals(region)) {
            osv3.useRegion(region);
        }
        return osv3;

}