外鍵約束問題涉及一個一對多和多對一一個在EcliplseLink2.1.2

Question

我在MySQL 5.5.9遇到1452錯誤，同時運行，我脫下了網站的EclipseLink JPA的一些教程代碼的關係（ http://wiki.eclipse.org/EclipseLink/Examples/JPA/EmployeeXML），我希望有人有一些洞察力。

我使用的EclipseLink最新的穩定版本今天從主網站： 的EclipseLink - JPA-modelgen_2.1.2.v20101206-r8635.jar和javax.persistence_2.0.1.v201006031150.jar。

當我通過CreateDatabase.java填充數據庫，我收到以下錯誤：

com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException：不能添加或更新子行，外鍵約束失敗（ 。jpatutorialphone，約束FK_PHONE_EMP_PH_ID外鍵（EMP_PH_ID）參考文獻EMPLOYEE（EMP_ID）） 錯誤代碼：1452 呼叫：？？？？INSERT INTO PHONE（PH_ID，TYPE，AREA_CODE，P_NUMBER，EMP_PH_ID）VALUES（，，，，？ ） bind => [25，Work，613，5558812，23] Query：InsertObjectQuery（Phon e（[Work] 613 - 5558812））

這裏的相關模型是Employee表和Phone表。電話與員工之間存在多對一的關係。在orm.xml中的一部分是低於：

<entity class="model.PhoneNumber"> 
    <table name="PHONE" /> 
    <attributes> 
    . 
      . 
     <many-to-one name="owner"> 
      <join-column name="EMP_PH_ID" /> 
     </many-to-one> 
    </attributes> 
</entity> 

<entity class="model.Employee"> 
    <!-- secondary-table name="SALARY" /--> 
    <attributes> 
     <id name="id"> 
      <column name="EMP_ID" /> 
      <generated-value /> 
     </id> 
     . 
        . 
     <one-to-many name="phoneNumbers" mapped-by="owner"> 
      <cascade> 
       <cascade-all /> 
      </cascade> 
      <private-owned /> 
     </one-to-many> 
       . 
         . 
    </attributes> 
</entity> 

代碼成功創建表，爲員工創造地址記錄，創建所有員工記錄，但隨後未能在插入電話記錄，即使它有一個有效的FK參考員工記錄。我簡化了代碼，以便它執行，保存並提交所有內容直至失敗，但是，無論是通過JPA執行插入操作還是通過運行SQL腳本手動執行操作，最終都會出現相同的1452錯誤。有趣的是，我發現如果我刪除了所有相關的Employee實體，然後重新創建它們以創建由MySQL工作臺反向設計的表定義，我可以通過JPA成功地將記錄插入到所有表中，並通過腳本手動執行。所以，這表明Eclipselink正在以某種方式創建表，導致產生問題，並且MySQL Workbench沒有在逆向工程中捕獲這些有問題的定義。在這一點上，我沒有想法。

從登錄FINEST

追加DDL：

[EL Finest]: sequencing connected, state is Preallocation_Transaction_NoAccessor_State 
[EL Finest]: sequence : preallocation size 50 
[EL Finest]: sequence SEQ_GEN: preallocation size 50 
[EL Info]: file:/Users/dylantong/Documents/workspace/JPA Tutorial/bin/_employee login successful 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PHONE DROP FOREIGN KEY FK_PHONE_EMP_PH_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE PHONE DROP FOREIGN KEY FK_PHONE_EMP_PH_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE EMPLOYEE DROP FOREIGN KEY FK_EMPLOYEE_MANAGER_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE EMPLOYEE DROP FOREIGN KEY FK_EMPLOYEE_MANAGER_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE EMPLOYEE DROP FOREIGN KEY FK_EMPLOYEE_ADDR_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE EMPLOYEE DROP FOREIGN KEY FK_EMPLOYEE_ADDR_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJ_EMP DROP FOREIGN KEY FK_PROJ_EMP_EMP_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJ_EMP DROP FOREIGN KEY FK_PROJ_EMP_EMP_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJ_EMP DROP FOREIGN KEY FK_PROJ_EMP_PROJ_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJ_EMP DROP FOREIGN KEY FK_PROJ_EMP_PROJ_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJECT DROP FOREIGN KEY FK_PROJECT_LEADER_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJECT DROP FOREIGN KEY FK_PROJECT_LEADER_ID 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE LPROJECT DROP FOREIGN KEY FK_LPROJECT_PROJ_ID") 
[EL Fine]: Connection(876256661)--ALTER TABLE LPROJECT DROP FOREIGN KEY FK_LPROJECT_PROJ_ID 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE PHONE") 
[EL Fine]: Connection(876256661)--DROP TABLE PHONE 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE PHONE (PH_ID INTEGER NOT NULL, TYPE VARCHAR(255) NOT NULL, AREA_CODE VARCHAR(255), P_NUMBER VARCHAR(255), EMP_PH_ID INTEGER, PRIMARY KEY (PH_ID, TYPE))") 
[EL Fine]: Connection(876256661)--CREATE TABLE PHONE (PH_ID INTEGER NOT NULL, TYPE VARCHAR(255) NOT NULL, AREA_CODE VARCHAR(255), P_NUMBER VARCHAR(255), EMP_PH_ID INTEGER, PRIMARY KEY (PH_ID, TYPE)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE EMPLOYEE") 
[EL Fine]: Connection(876256661)--DROP TABLE EMPLOYEE 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE EMPLOYEE (EMP_ID INTEGER NOT NULL, L_NAME VARCHAR(255), END_TIME TIME, VERSION BIGINT, START_TIME TIME, GENDER VARCHAR(255), salary DOUBLE, F_NAME VARCHAR(255), MANAGER_ID INTEGER, ADDR_ID INTEGER, START_DATE DATE, END_DATE DATE, PRIMARY KEY (EMP_ID))") 
[EL Fine]: Connection(876256661)--CREATE TABLE EMPLOYEE (EMP_ID INTEGER NOT NULL, L_NAME VARCHAR(255), END_TIME TIME, VERSION BIGINT, START_TIME TIME, GENDER VARCHAR(255), salary DOUBLE, F_NAME VARCHAR(255), MANAGER_ID INTEGER, ADDR_ID INTEGER, START_DATE DATE, END_DATE DATE, PRIMARY KEY (EMP_ID)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE PROJ_EMP") 
[EL Fine]: Connection(876256661)--DROP TABLE PROJ_EMP 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE PROJ_EMP (EMP_ID INTEGER NOT NULL, PROJ_ID INTEGER NOT NULL, PRIMARY KEY (EMP_ID, PROJ_ID))") 
[EL Fine]: Connection(876256661)--CREATE TABLE PROJ_EMP (EMP_ID INTEGER NOT NULL, PROJ_ID INTEGER NOT NULL, PRIMARY KEY (EMP_ID, PROJ_ID)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE ADDRESS") 
[EL Fine]: Connection(876256661)--DROP TABLE ADDRESS 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE ADDRESS (ADDRESS_ID INTEGER NOT NULL, P_CODE VARCHAR(255), STREET VARCHAR(255), PROVINCE VARCHAR(255), COUNTRY VARCHAR(255), CITY VARCHAR(255), PRIMARY KEY (ADDRESS_ID))") 
[EL Fine]: Connection(876256661)--CREATE TABLE ADDRESS (ADDRESS_ID INTEGER NOT NULL, P_CODE VARCHAR(255), STREET VARCHAR(255), PROVINCE VARCHAR(255), COUNTRY VARCHAR(255), CITY VARCHAR(255), PRIMARY KEY (ADDRESS_ID)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE PROJECT") 
[EL Fine]: Connection(876256661)--DROP TABLE PROJECT 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE PROJECT (PROJ_ID INTEGER NOT NULL, PROJ_TYPE VARCHAR(31), DESCRIP VARCHAR(255), PROJ_NAME VARCHAR(255), VERSION BIGINT, LEADER_ID INTEGER, PRIMARY KEY (PROJ_ID))") 
[EL Fine]: Connection(876256661)--CREATE TABLE PROJECT (PROJ_ID INTEGER NOT NULL, PROJ_TYPE VARCHAR(31), DESCRIP VARCHAR(255), PROJ_NAME VARCHAR(255), VERSION BIGINT, LEADER_ID INTEGER, PRIMARY KEY (PROJ_ID)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE RESPONS") 
[EL Fine]: Connection(876256661)--DROP TABLE RESPONS 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE RESPONS (EMP_ID INTEGER NOT NULL, RESPON_DESC VARCHAR(255))") 
[EL Fine]: Connection(876256661)--CREATE TABLE RESPONS (EMP_ID INTEGER NOT NULL, RESPON_DESC VARCHAR(255)) 
[EL Finest]: Execute query DataModifyQuery(sql="DROP TABLE LPROJECT") 
[EL Fine]: Connection(876256661)--DROP TABLE LPROJECT 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE LPROJECT (PROJ_ID INTEGER NOT NULL, MILESTONE DATETIME, BUDGET DOUBLE, PRIMARY KEY (PROJ_ID))") 
[EL Fine]: Connection(876256661)--CREATE TABLE LPROJECT (PROJ_ID INTEGER NOT NULL, MILESTONE DATETIME, BUDGET DOUBLE, PRIMARY KEY (PROJ_ID)) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PHONE ADD CONSTRAINT FK_PHONE_EMP_PH_ID FOREIGN KEY (EMP_PH_ID) REFERENCES EMPLOYEE (EMP_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE PHONE ADD CONSTRAINT FK_PHONE_EMP_PH_ID FOREIGN KEY (EMP_PH_ID) REFERENCES EMPLOYEE (EMP_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE EMPLOYEE ADD CONSTRAINT FK_EMPLOYEE_MANAGER_ID FOREIGN KEY (MANAGER_ID) REFERENCES EMPLOYEE (EMP_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE EMPLOYEE ADD CONSTRAINT FK_EMPLOYEE_MANAGER_ID FOREIGN KEY (MANAGER_ID) REFERENCES EMPLOYEE (EMP_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE EMPLOYEE ADD CONSTRAINT FK_EMPLOYEE_ADDR_ID FOREIGN KEY (ADDR_ID) REFERENCES ADDRESS (ADDRESS_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE EMPLOYEE ADD CONSTRAINT FK_EMPLOYEE_ADDR_ID FOREIGN KEY (ADDR_ID) REFERENCES ADDRESS (ADDRESS_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJ_EMP ADD CONSTRAINT FK_PROJ_EMP_EMP_ID FOREIGN KEY (EMP_ID) REFERENCES EMPLOYEE (EMP_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJ_EMP ADD CONSTRAINT FK_PROJ_EMP_EMP_ID FOREIGN KEY (EMP_ID) REFERENCES EMPLOYEE (EMP_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJ_EMP ADD CONSTRAINT FK_PROJ_EMP_PROJ_ID FOREIGN KEY (PROJ_ID) REFERENCES PROJECT (PROJ_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJ_EMP ADD CONSTRAINT FK_PROJ_EMP_PROJ_ID FOREIGN KEY (PROJ_ID) REFERENCES PROJECT (PROJ_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE PROJECT ADD CONSTRAINT FK_PROJECT_LEADER_ID FOREIGN KEY (LEADER_ID) REFERENCES EMPLOYEE (EMP_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE PROJECT ADD CONSTRAINT FK_PROJECT_LEADER_ID FOREIGN KEY (LEADER_ID) REFERENCES EMPLOYEE (EMP_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="ALTER TABLE LPROJECT ADD CONSTRAINT FK_LPROJECT_PROJ_ID FOREIGN KEY (PROJ_ID) REFERENCES PROJECT (PROJ_ID)") 
[EL Fine]: Connection(876256661)--ALTER TABLE LPROJECT ADD CONSTRAINT FK_LPROJECT_PROJ_ID FOREIGN KEY (PROJ_ID) REFERENCES PROJECT (PROJ_ID) 
[EL Finest]: Execute query DataModifyQuery(sql="CREATE TABLE SEQUENCE (SEQ_NAME VARCHAR(50) NOT NULL, SEQ_COUNT DECIMAL(38), PRIMARY KEY (SEQ_NAME))") 
[EL Fine]: Connection(876256661)--CREATE TABLE SEQUENCE (SEQ_NAME VARCHAR(50) NOT NULL, SEQ_COUNT DECIMAL(38), PRIMARY KEY (SEQ_NAME)) 
[EL Fine]: SELECT 1 

Answer 1

包括你的錯誤是在項目不打電話？

請包括用最好的日誌記錄生成的DDL和SQL。