Cannot add or update a child row: a foreign key constraint fails

Question

想问一下具体怎么操作才能成功呢？

Answer 1

qq_蓝骏毅_04076633 2020-07-17 21:28:43

你这个怎么解决

Answer 2

qq_蓝骏毅_04076633 2020-07-17 21:14:26

org.springframework.dao.DataIntegrityViolationException: 

### Error updating database.  Cause: java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`))

### The error may exist in file [D:\Program Files\Java\eclipse-workspace\o2o\target\classes\mapper\ShopDao.xml]

### The error may involve defaultParameterMap

### The error occurred while setting parameters

### SQL: INSERT INTO   tb_shop(owner_id, area_id, shop_category_id,   shop_name, shop_desc, shop_addr,   phone, shop_img, priority,   create_time, last_edit_time, enable_status,   advice)   VALUES   (?,?,?,?,   ?,?,?,?,?,   ?,?, ?,?)

### Cause: java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`))

; SQL []; Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`)); nested exception is java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`))

at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:243)

at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)

at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)

at com.sun.proxy.$Proxy19.insert(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:278)

at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:62)

at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:58)

at com.sun.proxy.$Proxy30.insertShop(Unknown Source)

at com.imooc.o2o.dao.ShopDaoTest.testInsertShop(ShopDaoTest.java:85)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)

at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)

at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)

at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)

at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)

at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)

at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)

at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)

at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)

at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)

at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206)

Caused by: java.sql.SQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`))

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:117)

at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)

at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)

at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:955)

at com.mysql.cj.jdbc.ClientPreparedStatement.execute(ClientPreparedStatement.java:372)

at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.execute(NewProxyPreparedStatement.java:67)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59)

at com.sun.proxy.$Proxy33.execute(Unknown Source)

at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:47)

at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74)

at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50)

at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)

at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)

at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:197)

at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:184)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)

... 35 more

• 翔仔 #1

  其实类似的问题我看同学遇到过好多次了，建议总结一下，百度一下就有解决方案，还是数据问题
  : Cannot add or update a child row: a foreign key constraint fails (`o2o`.`tb_shop`, CONSTRAINT `fk_shop_area` FOREIGN KEY (`area_id`) REFERENCES `tb_area` (`area_id`))
  说的就是你的tb_shop里面的area_id在tb_area里面不存在，需要创建相关的area_id记录

• qq_蓝骏毅_04076633 回复 翔仔 #2

  哦，这是我删了原来数据库，重新写记录在数据库

• qq_蓝骏毅_04076633 #3

  已经解决了

Answer 3

翔仔 2020-06-25 04:00:59

同学好，这个问题比较明显，其实百度一下就知道是违反了主外键约束，你的tb_shop里面插入的记录，area_id在tb_area不存在，需要在tb_area里创建