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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/02/05 07:31:15 UTC
[GitHub] [shardingsphere] QwQyewen opened a new issue #9344: 5.0.0-alpha Official document error：java.util.NoSuchElementException: No value bound
QwQyewen opened a new issue #9344:
URL: https://github.com/apache/shardingsphere/issues/9344
## Bug Report
Recently I found that there are some errors in the official documents. The configuration according to the official documents will cause our program to not run normally.
The following configuration according to the official documents will cause an error：java.util.NoSuchElementException: No value bound
spring.shardingsphere.datasource.ds0.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.ds0.driver-class-name=com.mysql.jdbc.Driver
spring.shardingsphere.datasource.ds0.jdbc-url=jdbc:mysql://localhost:3306/ds0？serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=
### Which version of ShardingSphere did you use?
5.0.0-alpha
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-JDBC
### Expected behavior
### Actual behavior
java.util.NoSuchElementException: No value bound
### Reason analyze (If you can)
The correct configuration should be：
spring.shardingsphere.datasource.common.type=com.zaxxer.hikari.HikariDataSource
spring.shardingsphere.datasource.common.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.ds0.jdbc-url=jdbc:mysql://localhost:3306/ds0？serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=
In addition, lack of configuration can still cause this errors. So we have to add the following configuration:
spring.shardingsphere.rules.sharding.tables.t_order.key-generate-strategy.key-generator-name=snowflake
spring.shardingsphere.rules.sharding.key-generators.snowflake.type=SNOWFLAKE
spring.shardingsphere.rules.sharding.tables.t_order.key-generate-strategy.column=id
spring.shardingsphere.rules.sharding.key-generators.snowflake.props.worker-id=123
**Complete and correct configuration：**
spring.shardingsphere.datasource.names=ds0,ds1
spring.shardingsphere.datasource.common.type=com.alibaba.druid.pool.DruidDataSource
spring.shardingsphere.datasource.common.driver-class-name=com.mysql.cj.jdbc.Driver
spring.shardingsphere.datasource.ds0.url=jdbc:mysql://127.0.0.1:3306/ds0?serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
spring.shardingsphere.datasource.ds0.username=root
spring.shardingsphere.datasource.ds0.password=root
spring.shardingsphere.datasource.ds1.url=jdbc:mysql://127.0.0.1:3306/ds1?serverTimezone=UTC&useSSL=false&useUnicode=true&characterEncoding=UTF-8
spring.shardingsphere.datasource.ds1.username=root
spring.shardingsphere.datasource.ds2.password=root
spring.shardingsphere.rules.sharding.binding-tables=t_order
spring.shardingsphere.rules.sharding.tables.t_order.actual-data-nodes=ds$->{0..1}.t_order_$->{0..1}
spring.shardingsphere.rules.sharding.database-strategy.inline.sharding-column=user_id
spring.shardingsphere.rules.sharding.database-strategy.inline.sharding-algorithm-name=database-inline
spring.shardingsphere.rules.sharding.sharding-algorithms.database-inline.type=INLINE
spring.shardingsphere.rules.sharding.sharding-algorithms.database-inline.props.algorithm-expression=ds-$->{user_id % 2}
spring.shardingsphere.rules.sharding.tables.t_order.table-strategy.inline.sharding-column=order_id
spring.shardingsphere.rules.sharding.tables.t_order.table-strategy.inline.sharding-algorithm-name=table-inline
spring.shardingsphere.rules.sharding.sharding-algorithms.table-inline.type=INLINE
spring.shardingsphere.rules.sharding.sharding-algorithms.table-inline.props.algorithm-expression=t_order_$->{order_id % 2}
spring.shardingsphere.rules.sharding.tables.t_order.key-generate-strategy.key-generator-name=snowflake
spring.shardingsphere.rules.sharding.key-generators.snowflake.type=SNOWFLAKE
spring.shardingsphere.rules.sharding.tables.t_order.key-generate-strategy.column=id
spring.shardingsphere.rules.sharding.key-generators.snowflake.props.worker-id=123
### Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.
### Example codes for reproduce this issue (such as a github link).
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[GitHub] [shardingsphere] tuohai666 commented on issue #9344: 5.0.0-alpha Official document error：java.util.NoSuchElementException: No value bound
Posted by GitBox <gi...@apache.org>.
tuohai666 commented on issue #9344:
URL: https://github.com/apache/shardingsphere/issues/9344#issuecomment-773859106
Would you like to provide a pr?
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[GitHub] [shardingsphere] tuohai666 commented on issue #9344: 5.0.0-alpha Official document error：java.util.NoSuchElementException: No value bound
Posted by GitBox <gi...@apache.org>.
tuohai666 commented on issue #9344:
URL: https://github.com/apache/shardingsphere/issues/9344#issuecomment-773859106
Would you like to provide a pr?
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[GitHub] [shardingsphere] terrymanu closed issue #9344: 5.0.0-alpha Official document error：java.util.NoSuchElementException: No value bound
Posted by GitBox <gi...@apache.org>.
terrymanu closed issue #9344:
URL: https://github.com/apache/shardingsphere/issues/9344
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