nacos-client 增加版本检查的需求说明 #13977
Description
alibaba/spring-cloud-alibaba#4098
- 许多人使用
spring-cloud-alibaba2025.0.0.0中的nacos版本是3.0.3连接nacos2.x
服务，导致配置读取结果为空，是否考虑在微服务项目启动时，检查nacos-client与 nacos 服务的版本相差多大，比如：
nacos-client3.x不允许连接nacos2.x - nacos 2.5.2 的 http://127.0.0.1:8848/nacos/v1/console/server/state 接口返回：
{ "data_verify_timeoutMs": "3000", "auth_system_type": "nacos", "max_entries_size": "1024", "replicator_pipeline": "true", "data_load_retryDelayMs": "30000", "console_ui_enabled": "true", "defaultMaxAggrCount": "10000", "defaultGroupQuota": "200", "config_retention_days": "30", "auth_admin_request": "false", "apply_batch": "32", "isManageCapacity": "true", "notifyConnectTimeout": "100", "election_timeout_ms": "5000", "data_verify_intervalMs": "5000", "auth_enabled": "false", "max_byte_count_per_rpc": "131072", "defaultMaxAggrSize": "1024", "election_heartbeat_factor": "10", "startup_mode": "cluster", "version": "2.5.2", "sync": "true", "isCapacityLimitCheck": "false", "server_port": "8848", "notifySocketTimeout": "200", "defaultMaxSize": "102400", "disruptor_buffer_size": "16384", "max_replicator_inflight_msgs": "256", "data_sync_delayMs": "1000", "core_thread_num": "8", "maxContent": "10485760", "rpc_request_timeout_ms": "5000", "function_mode": null, "data_load_timeoutMs": "30000", "snapshot_interval_secs": "1800", "data_sync_retryDelayMs": "3000", "defaultClusterQuota": "100000", "plugin_datasource_log_enabled": "false", "max_body_size": "524288", "sync_meta": "false", "data_sync_timeoutMs": "3000", "cli_service_thread_num": "4", "maxHealthCheckFailCount": "12", "isHealthCheck": "true", "max_append_buffer_size": "262144", "datasource_platform": "mysql", "read_index_type": null, "max_election_delay_ms": "1000", "enable_log_entry_checksum": "false", "login_page_enabled": "false" } - nacos 3.1.1 的 http://127.0.0.1:8080/v3/console/server/state 接口返回：
{ "defaultMaxSize": "102400", "auth_system_type": "nacos", "auth_enabled": "true", "defaultMaxAggrSize": "1024", "maxHealthCheckFailCount": "12", "maxContent": "10485760", "console_ui_enabled": "true", "defaultMaxAggrCount": "10000", "defaultGroupQuota": "200", "config_retention_days": "30", "auth_admin_request": "false", "startup_mode": "standalone", "isHealthCheck": "true", "version": "3.1.1", "function_mode": null, "isManageCapacity": "true", "isCapacityLimitCheck": "false", "datasource_platform": "", "notifyConnectTimeout": "100", "server_port": "8848", "notifySocketTimeout": "200", "defaultClusterQuota": "100000", "plugin_datasource_log_enabled": "false", "login_page_enabled": "true" }