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。
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。我希望能够在没有身份验证的情况下进行连接（我重新启动了DB2服务），但是我仍然遇到错误。
当我尝试连接时没有用户名/密码
jdbc:db2://localhost:50000/test
我收到错误：com.ibm.db2.jcc.am.SqlSyntaxErrorException：[jcc] [t4] [10205] [11234] [4.14.146]不支持空用户标识。 ERRORCODE = -4461，SQLSTATE = 42815
当我尝试添加＆＃34;虚假＆＃34;用户/密码（因为我无法弄清楚如何设置或重置凭据），例如
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
如何使用JDBC连接？
下面的DB2配置：
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~1\IBM\SQLLIB\java\jdk Diagnostic error capture level (DIAGLEVEL) = 3
Notify Level (NOTIFYLEVEL) = 3
Diagnostic data directory path (DIAGPATH) = E:\Data\DB2\\IBM\DB2\DB2COPY1\DB2\
Current member resolved DIAGPATH = E:\Data\DB2\\IBM\DB2\DB2COPY1\DB2\
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) =
答案 0 :(得分：3)
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。
由于您的应用程序与数据库服务器在同一台计算机上运行，因此您甚至不需要设置AUTHENTICATION = CLIENT或TRUST_ALLCLNTS = YES。