我有QueueChannel和message-store属性。它的配置
<int:channel id="channel1">
<int:queue message-store="msgStore"></int:queue
</int:channel>
<int-jdbc:message-store id="msgStore" data-source="jdbcSQLiteDataSource"/>
然后我使用http协议将来自此频道的消息发送到另一个应用程序。 我的配置：
<int-http:outbound-gateway
url="someUrl" http-method="PUT"
request-channel="channel1">
<int-http:request-handler-advice-chain>
<int:retry-advice max-attempts="3">
<int:exponential-back-off initial="1000" multiplier="2.0" maximum="8000"/>
</int:retry-advice>
</int-http:request-handler-advice-chain>
</int-http:outbound-gateway>
如果接收应用程序没有收到我的消息（例如我从接收主机获得超时异常） 我想在通道（channel1）中返回此消息。
我使用事务轮询器，但它不起作用。消息将从频道中删除。
<int:poller default="true" fixed-rate="100" receive-timeout="100">
<int:transactional transaction-manager="transactionManager"/>
</int:poller>
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="jdbcSQLiteDataSource"/>
</bean>
LOG
DEBUG o.s.i.channel.QueueChannel: preSend on channel 'channel1', message: GenericMessage [payload=1, headers={timestamp=1481896454785, id=90adf115-d76e-3066-de99-ff3b867b66a5}]
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL query
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [SELECT COUNT(GROUP_KEY) FROM INT_MESSAGE_GROUP where GROUP_KEY=? and REGION=?]
DEBUG o.s.j.datasource.DataSourceUtils: Fetching JDBC Connection from DataSource
INFO o.s.j.datasource.SingleConnectionDataSource: Established shared JDBC Connection: org.sqlite.SQLiteConnection@1df9e01e
DEBUG o.s.j.datasource.DataSourceTransactionManager: Acquired Connection [org.sqlite.SQLiteConnection@1df9e01e] for JDBC transaction
DEBUG o.s.j.datasource.DataSourceUtils: Changing isolation level of JDBC Connection [org.sqlite.SQLiteConnection@1df9e01e] to 8
DEBUG o.s.i.jdbc.JdbcMessageStore: Removing messages from group with group key=c5404fa9-4717-38a5-8871-b8761a8414d5
DEBUG o.s.j.core.JdbcTemplate: Executing SQL batch update [DELETE from INT_GROUP_TO_MESSAGE where GROUP_KEY=? and MESSAGE_ID=? and REGION=?] with a batch size of 100
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [DELETE from INT_GROUP_TO_MESSAGE where GROUP_KEY=? and MESSAGE_ID=? and REGION=?]
DEBUG o.s.j.support.JdbcUtils: JDBC driver supports batch updates
DEBUG o.s.j.core.JdbcTemplate: Sending SQL batch update #1 with 1 items
DEBUG o.s.j.core.JdbcTemplate: Executing SQL batch update [DELETE from INT_MESSAGE where MESSAGE_ID=? and REGION=?] with a batch size of 100
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [**DELETE from INT_MESSAGE where MESSAGE_ID=? and REGION=?]**
DEBUG o.s.j.support.JdbcUtils: JDBC driver supports batch updates
DEBUG o.s.j.core.JdbcTemplate: Sending SQL batch update #1 with 1 items
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL update
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [UPDATE INT_MESSAGE_GROUP set UPDATED_DATE=? where GROUP_KEY=? and REGION=?]
DEBUG o.s.i.jdbc.JdbcMessageStore: Updating MessageGroup: c5404fa9-4717-38a5-8871-b8761a8414d5
DEBUG o.s.j.core.JdbcTemplate: SQL update affected 1 rows
DEBUG o.s.i.channel.QueueChannel: postReceive on channel 'channel1', message: GenericMessage [payload=1, headers={id=90adf115-d76e-3066-de99-ff3b867b66a5, timestamp=1481896454898, JdbcMessageStore.CREATED_DATE=1481896454898, JdbcMessageStore.SAVED=true}]
DEBUG o.s.i.endpoint.PollingConsumer: Poll resulted in Message: GenericMessage [payload=1, headers={id=90adf115-d76e-3066-de99-ff3b867b66a5, timestamp=1481896454898, JdbcMessageStore.CREATED_DATE=1481896454898, JdbcMessageStore.SAVED=true}]
DEBUG o.s.i.http.outbound.HttpRequestExecutingMessageHandler: o.s.i.http.outbound.HttpRequestExecutingMessageHandler#0 received message: GenericMessage [payload=1, headers={id=90adf115-d76e-3066-de99-ff3b867b66a5, timestamp=1481896454898, JdbcMessageStore.CREATED_DATE=1481896454898, JdbcMessageStore.SAVED=true}]
DEBUG org.springframework.retry.support.RetryTemplate: Retry: count=0
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: outboundHeaderNames=[Accept, Accept-Charset, Accept-Encoding, Accept-Language, Accept-Ranges, Authorization, Cache-Control, Connection, Content-Length, Content-Type, Cookie, Date, Expect, From, Host, If-Match, If-Modified-Since, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, Pragma, Proxy-Authorization, Range, Referer, TE, Upgrade, User-Agent, Via, Warning]
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[id] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[timestamp] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.created_date] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.saved] WILL NOT be mapped
DEBUG org.springframework.web.client.RestTemplate: **Created PUT request for** "http://localhost:8081/test/...
DEBUG org.springframework.web.client.RestTemplate: Writing [1] as "text/plain;charset=UTF-8" using [org.springframework.http.converter.StringHttpMessageConverter@1f56e60b]
DEBUG org.springframework.retry.backoff.ExponentialBackOffPolicy: Sleeping for 1000
DEBUG org.springframework.retry.support.RetryTemplate: Checking for rethrow: count=1
DEBUG org.springframework.retry.support.RetryTemplate: Retry: count=1
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: outboundHeaderNames=[Accept, Accept-Charset, Accept-Encoding, Accept-Language, Accept-Ranges, Authorization, Cache-Control, Connection, Content-Length, Content-Type, Cookie, Date, Expect, From, Host, If-Match, If-Modified-Since, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, Pragma, Proxy-Authorization, Range, Referer, TE, Upgrade, User-Agent, Via, Warning]
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[id] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[timestamp] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.created_date] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.saved] WILL NOT be mapped
DEBUG org.springframework.web.client.RestTemplate: **Created PUT request** for "http://localhost:8081/test/...
DEBUG org.springframework.web.client.RestTemplate: Writing [1] as "text/plain;charset=UTF-8" using [org.springframework.http.converter.StringHttpMessageConverter@1f56e60b]
DEBUG org.springframework.retry.backoff.ExponentialBackOffPolicy: Sleeping for 2000
DEBUG org.springframework.retry.support.RetryTemplate: Checking for rethrow: count=2
DEBUG org.springframework.retry.support.RetryTemplate: Retry: count=2
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: outboundHeaderNames=[Accept, Accept-Charset, Accept-Encoding, Accept-Language, Accept-Ranges, Authorization, Cache-Control, Connection, Content-Length, Content-Type, Cookie, Date, Expect, From, Host, If-Match, If-Modified-Since, If-None-Match, If-Range, If-Unmodified-Since, Max-Forwards, Pragma, Proxy-Authorization, Range, Referer, TE, Upgrade, User-Agent, Via, Warning]
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[id] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[timestamp] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.created_date] WILL NOT be mapped
DEBUG o.s.i.http.support.DefaultHttpHeaderMapper: headerName=[jdbcmessagestore.saved] WILL NOT be mapped
DEBUG org.springframework.web.client.RestTemplate: **Created PUT request** for "http://localhost:8081/test/...
DEBUG org.springframework.web.client.RestTemplate: Writing [1] as "text/plain;charset=UTF-8" using [org.springframework.http.converter.StringHttpMessageConverter@1f56e60b]
DEBUG org.springframework.retry.support.RetryTemplate: Checking for rethrow: count=3
DEBUG org.springframework.retry.support.RetryTemplate: Retry failed last attempt: count=3
DEBUG o.s.j.datasource.DataSourceTransactionManager: Initiating transaction rollback
DEBUG o.s.j.datasource.DataSourceTransactionManager: Rolling back JDBC transaction on Connection [org.sqlite.SQLiteConnection@1df9e01e]
DEBUG o.s.j.datasource.DataSourceTransactionManager: Releasing JDBC Connection [org.sqlite.SQLiteConnection@1df9e01e] after transaction
DEBUG o.s.j.datasource.DataSourceUtils: Returning JDBC Connection to DataSource
DEBUG o.s.b.factory.support.DefaultListableBeanFactory: Returning cached instance of singleton bean 'errorChannel'
DEBUG o.s.i.channel.PublishSubscribeChannel: preSend on channel 'errorChannel', message: ErrorMessage [payload=org.springframework.messaging.MessageHandlingException: HTTP request execution failed for URI [http://localhost:8081/test/...]; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on PUT request for "http://localhost:8081/test/...": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect, headers={timestamp=1481896460962, id=8bff6f2e-ef3a-52bd-5d41-f8785b45a880}]
DEBUG o.s.i.handler.LoggingHandler: _o.s.i.errorLogger.handler received message: ErrorMessage [payload=org.springframework.messaging.MessageHandlingException: HTTP request execution failed for URI [http://localhost:8081/test/...]; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on PUT request for "http://localhost:8081/test/...": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect, headers={timestamp=1481896460962, id=8bff6f2e-ef3a-52bd-5d41-f8785b45a880}]
ERROR o.s.i.handler.LoggingHandler: org.springframework.messaging.MessageHandlingException: HTTP request execution failed for URI [http://localhost:8081/test/...]; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on PUT request for "http://localhost:8081/test/...": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect
Caused by: java.net.ConnectException: Connection refused: connect
...
DEBUG o.s.i.channel.PublishSubscribeChannel: postSend (sent=true) on channel 'errorChannel', message: ErrorMessage [payload=org.springframework.messaging.MessageHandlingException: HTTP request execution failed for URI [http://localhost:8081/test/...]; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on PUT request for "http://localhost:8081/test/...": Connection refused: connect; nested exception is java.net.ConnectException: Connection refused: connect, headers={timestamp=1481896460962, id=8bff6f2e-ef3a-52bd-5d41-f8785b45a880}]
DEBUG o.s.j.datasource.DataSourceTransactionManager: Creating new transaction with name [o.s.i.endpoint.AbstractPollingEndpoint$1.call]: PROPAGATION_REQUIRED,ISOLATION_SERIALIZABLE
DEBUG o.s.j.datasource.DataSourceTransactionManager: Acquired Connection [org.sqlite.SQLiteConnection@1df9e01e] for JDBC transaction
DEBUG o.s.j.datasource.DataSourceUtils: Changing isolation level of JDBC Connection [org.sqlite.SQLiteConnection@1df9e01e] to 8
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL query
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [SELECT COUNT(MESSAGE_ID) from INT_GROUP_TO_MESSAGE where GROUP_KEY=? and REGION=?]
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL query
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [SELECT COUNT(MESSAGE_ID) from INT_GROUP_TO_MESSAGE where GROUP_KEY=? and REGION=?]
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL query
DEBUG o.s.j.core.JdbcTemplate: Executing prepared SQL statement [SELECT INT_MESSAGE.MESSAGE_ID, INT_MESSAGE.MESSAGE_BYTES from INT_MESSAGE where INT_MESSAGE.MESSAGE_ID = (SELECT min(m.MESSAGE_ID) from INT_MESSAGE m join INT_GROUP_TO_MESSAGE on m.MESSAGE_ID = INT_GROUP_TO_MESSAGE.MESSAGE_ID where CREATED_DATE = (SELECT min(CREATED_DATE) from INT_MESSAGE, INT_GROUP_TO_MESSAGE where INT_MESSAGE.MESSAGE_ID = INT_GROUP_TO_MESSAGE.MESSAGE_ID and INT_GROUP_TO_MESSAGE.GROUP_KEY = ? and INT_MESSAGE.REGION = ?) and INT_GROUP_TO_MESSAGE.GROUP_KEY = ? and m.REGION = ?)]
DEBUG o.s.i.endpoint.PollingConsumer: Received no Message during the poll, returning 'false'
DEBUG o.s.j.datasource.DataSourceTransactionManager: Initiating transaction commit
我在做什么是错的？
答案 0 :(得分：1)
也许它是你的数据库;我不熟悉SQLLite我只是用H2测试它，一切都按预期工作......
<int:channel id="channel1">
<int:queue message-store="msgStore" />
</int:channel>
<int-jdbc:message-store id="msgStore"
data-source="dataSource" />
<int:service-activator input-channel="channel1" expression="1/0">
<int:request-handler-advice-chain>
<int:retry-advice>
<int:fixed-back-off interval="1000" />
</int:retry-advice>
</int:request-handler-advice-chain>
</int:service-activator>
<int:poller default="true" fixed-rate="100" receive-timeout="100">
<int:transactional transaction-manager="transactionManager" />
</int:poller>
<jdbc:initialize-database>
<jdbc:script location="classpath:org/springframework/integration/jdbc/schema-h2.sql" />
</jdbc:initialize-database>
@SpringBootApplication
@ImportResource("context.xml")
public class So41184992Application {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext context = SpringApplication.run(So41184992Application.class, args);
context.getBean("channel1", MessageChannel.class).send(new GenericMessage<>("foo"));
Thread.sleep(30000);
context.close();
}
}
结果：
10:22:42.680 [task-scheduler-1] ERROR o.s.i.handler.LoggingHandler - org.springframework.messaging.MessageHandlingException: Expression evaluation failed: 1/0; nested exception is java.lang.ArithmeticException: / by zero
at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:143)
...
10:22:44.690 [task-scheduler-1] ERROR o.s.i.handler.LoggingHandler - org.springframework.messaging.MessageHandlingException: Expression evaluation failed: 1/0; nested exception is java.lang.ArithmeticException: / by zero
at org.springframework.integration.util.AbstractExpressionEvaluator.evaluateExpression(AbstractExpressionEvaluator.java:143)
每2秒发生一次例外（3次尝试，延迟1秒）。
修改
顺便说一下，使用JdbcChannelMessageStore来支持频道而不是通用消息存储通常会更好 - 它针对频道进行了优化（而不是用于聚合的消息组等）
<bean id="msgStore" class="org.springframework.integration.jdbc.store.JdbcChannelMessageStore">
<property name="dataSource" ref="dataSource" />
<property name="channelMessageStoreQueryProvider">
<bean class="org.springframework.integration.jdbc.store.channel.H2ChannelMessageStoreQueryProvider" />
</property>
</bean>
<jdbc:initialize-database>
<jdbc:script location="classpath:org/springframework/integration/jdbc/store/channel/schema-h2.sql" />
</jdbc:initialize-database>
但是，您需要为非标准数据库提供自定义查询提供程序。