问题描述
我正在尝试连接到本地 DB2 10.5 Express-C 服务器.这是一个测试环境，所以我不关心安全性.
I am trying to connect to a local DB2 10.5 Express-C server. This is a testing environment so I don't care about security.
我能够连接到命令行处理器(在 Windows 上运行)，并且我更改了 AUTHENTICATION=CLIENT 和 TRUST_ALLCLNTS=YES 的配置设置.那时我希望能够在不进行身份验证的情况下进行连接(我重新启动了 DB2 服务)，但仍然出现错误.
I am able to connect to the Command Line Processor (running on Windows), and I changed the configuration settings for AUTHENTICATION=CLIENT and TRUST_ALLCLNTS=YES. I expected to be able to connect without authentication at that point (I restarted the DB2 service), but I still get an error.
当我尝试在没有用户名/密码的情况下进行连接时
When I try to connect without username/password
jdbc:db2://localhost:50000/test
我收到错误:com.ibm.db2.jcc.am.SqlSyntaxErrorException: [jcc][t4][10205][11234][4.14.146] Null userid is not supported.ERRORCODE=-4461，SQLSTATE=42815
I get the error: com.ibm.db2.jcc.am.SqlSyntaxErrorException: [jcc][t4][10205][11234][4.14.146] Null userid is not supported. ERRORCODE=-4461, SQLSTATE=42815
当我尝试添加虚假"用户/密码时(因为我不知道如何设置或重置凭据)，例如
And when I try to add "bogus" user/password (because I can't figure out how to set or reset credentials), e.g.
jdbc:db2://localhost:50000/test:user=userid;password=password;
我收到错误:com.ibm.db2.jcc.am.SqlInvalidAuthorizationSpecException: [jcc][t4][201][11237][4.14.146] 发生连接授权失败.原因:不支持安全机制.ERRORCODE=-4214，SQLSTATE=28000
I get the error: com.ibm.db2.jcc.am.SqlInvalidAuthorizationSpecException: [jcc][t4][201][11237][4.14.146] Connection authorization failure occurred. Reason: Security mechanism not supported. ERRORCODE=-4214, SQLSTATE=28000
如何使用 JDBC 进行连接?
How can I connect using JDBC?
DB2 配置如下:
db2 get dbm cfg
Database Manager Configuration Node type = Database Server with local and remote clients Database manager configuration release level = 0x1000 CPU speed (millisec/instruction) (CPUSPEED) = 1.023413e-007 Max number of concurrently active databases (NUMDB) = 32
Federated Database System Support (FEDERATED) = NO
Transaction processor monitor name (TP_MON_NAME) =
Default charge-back account (DFT_ACCOUNT_STR) =
Java Development Kit installation path (JDK_PATH) = C:PROGRA~1IBMSQLLIBjavajdk Diagnostic error capture level (DIAGLEVEL) = 3
Notify Level (NOTIFYLEVEL) = 3
Diagnostic data directory path (DIAGPATH) = E:DataDB2\IBMDB2DB2COPY1DB2
Current member resolved DIAGPATH = E:DataDB2\IBMDB2DB2COPY1DB2
Alternate diagnostic data directory path (ALT_DIAGPATH) =
Current member resolved ALT_DIAGPATH =
Size of rotating db2diag & notify logs (MB) (DIAGSIZE) = 0 Default database monitor switches
Buffer pool (DFT_MON_BUFPOOL) = OFF
Lock (DFT_MON_LOCK) = OFF
Sort (DFT_MON_SORT) = OFF
Statement (DFT_MON_STMT) = OFF
Table (DFT_MON_TABLE) = OFF
Timestamp (DFT_MON_TIMESTAMP) = ON
Unit of work (DFT_MON_UOW) = OFF
Monitor health of instance and databases (HEALTH_MON) = OFF SYSADM group name (SYSADM_GROUP) =
SYSCTRL group name (SYSCTRL_GROUP) =
SYSMAINT group name (SYSMAINT_GROUP) =
SYSMON group name (SYSMON_GROUP) =
Client Userid-Password Plugin (CLNT_PW_PLUGIN) =
Client Kerberos Plugin (CLNT_KRB_PLUGIN) = IBMkrb5
Group Plugin (GROUP_PLUGIN) =
GSS Plugin for Local Authorization (LOCAL_GSSPLUGIN) =
Server Plugin Mode (SRV_PLUGIN_MODE) = UNFENCED
Server List of GSS Plugins (SRVCON_GSSPLUGIN_LIST) =
Server Userid-Password Plugin (SRVCON_PW_PLUGIN) =
Server Connection Authentication (SRVCON_AUTH) = NOT_SPECIFIED
Cluster manager =
Database manager authentication (AUTHENTICATION) = CLIENT
Alternate authentication (ALTERNATE_AUTH_ENC) = NOT_SPECIFIED
Cataloging allowed without authority (CATALOG_NOAUTH) = YES
Trust all clients (TRUST_ALLCLNTS) = YES
Trusted client authentication (TRUST_CLNTAUTH) = CLIENT
Bypass federated authentication (FED_NOAUTH) = YES Default database path (DFTDBPATH) = C: Database monitor heap size (4KB) (MON_HEAP_SZ) = AUTOMATIC(66)
Java Virtual Machine heap size (4KB) (JAVA_HEAP_SZ) = 2048
Audit buffer size (4KB) (AUDIT_BUF_SZ) = 0
Global instance memory (4KB) (INSTANCE_MEMORY) = AUTOMATIC(3592673)
Member instance memory (4KB) = GLOBAL
Agent stack size (AGENT_STACK_SZ) = 16
Sort heap threshold (4KB) (SHEAPTHRES) = 0 Directory cache support (DIR_CACHE) = YES Application support layer heap size (4KB) (ASLHEAPSZ) = 15
Max requester I/O block size (bytes) (RQRIOBLK) = 65535
Workload impact by throttled utilities(UTIL_IMPACT_LIM) = 10 Priority of agents (AGENTPRI) = SYSTEM
Agent pool size (NUM_POOLAGENTS) = AUTOMATIC(100)
Initial number of agents in pool (NUM_INITAGENTS) = 0
Max number of coordinating agents (MAX_COORDAGENTS) = AUTOMATIC(200)
Max number of client connections (MAX_CONNECTIONS) = AUTOMATIC(MAX_COORDAGENTS) Keep fenced process (KEEPFENCED) = YES
Number of pooled fenced processes (FENCED_POOL) = AUTOMATIC(MAX_COORDAGENTS)
Initial number of fenced processes (NUM_INITFENCED) = 0 Index re-creation time and redo index build (INDEXREC) = RESTART Transaction manager database name (TM_DATABASE) = 1ST_CONN
Transaction resync interval (sec) (RESYNC_INTERVAL) = 180 SPM name (SPM_NAME) = WORKS12
SPM log size (SPM_LOG_FILE_SZ) = 256
SPM resync agent limit (SPM_MAX_RESYNC) = 20
SPM log path (SPM_LOG_PATH) =
TCP/IP Service name (SVCENAME) = db2c_DB2
Discovery mode (DISCOVER) = SEARCH
Discover server instance (DISCOVER_INST) = ENABLE SSL server keydb file (SSL_SVR_KEYDB) =
SSL server stash file (SSL_SVR_STASH) =
SSL server certificate label (SSL_SVR_LABEL) =
SSL service name (SSL_SVCENAME) =
SSL cipher specs (SSL_CIPHERSPECS) =
SSL versions (SSL_VERSIONS) =
SSL client keydb file (SSL_CLNT_KEYDB) =
SSL client stash file (SSL_CLNT_STASH) =
Maximum query degree of parallelism (MAX_QUERYDEGREE) = ANY
Enable intra-partition parallelism (INTRA_PARALLEL) = NO No. of int. communication buffers(4KB)(FCM_NUM_BUFFERS) = AUTOMATIC(1024)
No. of int. communication channels (FCM_NUM_CHANNELS) = AUTOMATIC(512)
db2start/db2stop timeout (min) (START_STOP_TIME) = 10 WLM dispatcher enabled (WLM_DISPATCHER) = NO WLM dispatcher concurrency (WLM_DISP_CONCUR) = COMPUTED WLM dispatcher CPU shares enabled (WLM_DISP_CPU_SHARES) = NO WLM dispatcher min. utilization (%) (WLM_DISP_MIN_UTIL) = 5 Communication buffer exit library list (COMM_EXIT_LIST) =
Current effective arch level (CUR_EFF_ARCH_LVL) = V:10 R:5 M:0 F:5 I:0 SB:0
Current effective code level (CUR_EFF_CODE_LVL) = V:10 R:5 M:0 F:5 I:0 SB:0 Keystore type (KEYSTORE_TYPE) = NONE
Keystore location (KEYSTORE_LOCATION) =
推荐答案
您需要使用 JDBC Type 2 URL (jdbc:db2:test) 而不是您正在使用的 Type 4 URL.您可以使用空的用户名/密码.
You need to use a JDBC Type 2 URL (jdbc:db2:test) Instead of the Type 4 URL you are using. You can use an empty username/password.
由于您的应用程序与数据库服务器在同一台机器上运行，您甚至不需要设置 AUTHENTICATION = CLIENT 或 TRUST_ALLCLNTS = YES.
Since your application is running on the same machine as the database server, you don't even need to set AUTHENTICATION = CLIENT or TRUST_ALLCLNTS = YES.
这篇关于通过 JDBC 连接到 DB2 时的用户名和密码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！