private void assignKeys(Configuration configuration, ResultSet rs, ResultSetMetaData rsmd, String[] keyProperties, Object parameter) throws SQLException { if (parameter instanceof ParamMap || parameter instanceof StrictMap) { //对应情况2 assignKeysToParamMap(configuration, rs, rsmd, keyProperties, (M...
二、MyBatis Configuration 配置文件 mybatis-config.xml是MyBatis的核心,它将影响MyBatis的行为。 MyBatisconfiguration标签中又包含了以下这些标签,每个标签都有不同的作用 typeAliases 别名的使用 在mybatis-config.xml中的settings标签下面增加别名的配置
如果这里采用resultMap,做出参映射,是手动会把mysql对应列 和 DO对应属性 映射起来,但是这里采用resultType ,如果没有开启下划线转驼峰的配置,就会导致映射失败。 因此需要mybatis配置开启该配置: mybatis: mapper-locations: "classpath*:mapper/*.xml" configuration: use-generated-keys: truemap-underscore-to-camel...
useGeneratedKeys (insert and update only) This tells MyBatis to use the JDBC getGeneratedKeys method to retrieve keys generated internally by the database (e.g.auto increment fields in RDBMS like MySQL or SQL Server). Default: false (( 仅对 insert 和update有 用 ) 这会告诉 MyBatis 使用 JDBC...
configuration: cache-enabled: true lazy-loading-enabled: true aggressive-lazy-loading: false multiple-result-sets-enabled: true use-column-label: true use-generated-keys: true auto-mapping-behavior: FULL default-executor-type: REUSE default-statement-timeout: 180 ...
tells MyBatis to use the JDBCgetGeneratedKeysmethod to retrieve keys generated internally by the ...
public class MapperMethod { private final SqlCommand command; private final MethodSignature method; //可以发现参数中有Configuration,也就是说这里可以获取到所有mybatis相关配置包括myabtis的statement对象,然后可以发现这里有俩个成员变量一个是SqlCommand,一个是MethodSignature,为什么需要将method去包装成MapperMethod呢...
驼峰转换aggressive-lazy-loading:auto-mapping-behavior:call-setters-on-nulls:default-fetch-size:default-statement-timeout:log-prefix:use-generated-keys:log-impl:multiple-result-sets-enabled:return-instance-for-empty-row:use-column-label:safe-result-handler-enabled:safe-row-bounds-enabled:use-actual-...
属性:students,db列名:null,JavaType:interface java.util.List,映射NestedResultMapId printResultMapping(propertyResultMapping, configuration); } // [School(id=1, name=西天小学, schoolHeadMaster=SchoolHeadMaster(id=1, name=如来), students=[Student(id=1, name=孙悟空), Student(id=2, name=猪八戒)...
characterEncoding=UTF-8 spring.datasource.username=root spring.datasource.password=123456 mybatis.configuration.map-underscore-to-camel-case=true mybatis.configuration.use-generated-keys=true spring.redis.host=192.168.0.146 spring.redis.port=6379 spring.redis.password= tx-lcn.manager.host=192.168.0.146...