Java DBUnit-完整性约束冲突：外键不动作；系统FK_10556

我目前正在使用dbunit（使用hsqldb）编写测试代码。但是，我在初始化数据库时遇到了一个很大的问题：

代码如下：

/**
     * Init before a test starts
     */
    @Before
    public void initialise() {
        IDataSet dataSetRating = null;
        IDataSet dataSetMovie = null;

        log.info("enter init test");

        try {
            con = datasource.getConnection();
            icon = new DatabaseConnection(con);
            File rating = new File("./src/test/resources/startDatabaseRating.xml");         
            dataSetRating = new FlatXmlDataSetBuilder().build(rating);
            DatabaseOperation.CLEAN_INSERT.execute(icon, dataSetRating);
        } catch (Exception e) {
            e.printStackTrace();
            log.error(e);
            System.exit(-1);
        }
    }

我的create语句如下所示：

CREATE TABLE Rating
(
    rid INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    mid INTEGER FOREIGN KEY REFERENCES Movie(movieId), 
    rating INTEGER NOT NULL, 
);

<?xml version="1.0" encoding="UTF-8"?>
<dataset>
    <Rating rid="0" mid="0" rating="1" />
    <Rating rid="1" mid="0" rating="2" />
    <Rating rid="2" mid="0" rating="3" />
    <Rating rid="3" mid="0" rating="4" />

    <Movie movieid="0" title="Movie1" moviePath="C" />
    <Movie movieid="1" title="Movie2" moviePath="D" />
</dataset> 

我的startDatabaseRating.xml如下所示：

CREATE TABLE Rating
(
    rid INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    mid INTEGER FOREIGN KEY REFERENCES Movie(movieId), 
    rating INTEGER NOT NULL, 
);

<?xml version="1.0" encoding="UTF-8"?>
<dataset>
    <Rating rid="0" mid="0" rating="1" />
    <Rating rid="1" mid="0" rating="2" />
    <Rating rid="2" mid="0" rating="3" />
    <Rating rid="3" mid="0" rating="4" />

    <Movie movieid="0" title="Movie1" moviePath="C" />
    <Movie movieid="1" title="Movie2" moviePath="D" />
</dataset> 

---

插入分级时，引用的电影必须已经存在于

电影

表中。因此，您按错误的顺序插入了行

您需要先插入电影，然后插入收视率

<?xml version="1.0" encoding="UTF-8"?>
<dataset>
    <Movie movieid="0" title="Movie1" moviePath="C" />
    <Movie movieid="1" title="Movie2" moviePath="D" />

    <Rating rid="0" mid="0" rating="1" />
    <Rating rid="1" mid="0" rating="2" />
    <Rating rid="2" mid="0" rating="3" />
    <Rating rid="3" mid="0" rating="4" />
</dataset> 

---

此外，我建议您在列中使用常规标签，尤其是id和外键，因为如果有一天由另一个人负责您的代码，它更容易理解和维护

<?xml version="1.0" encoding="UTF-8"?>
<dataset>
    <Movie id="0" title="Movie1" moviePath="C" />
    <Movie id="1" title="Movie2" moviePath="D" />

    <Rating id="0" movie_id="0" rating="1" />
    <Rating id="1" movie_id="0" rating="2" />
    <Rating id="2" movie_id="0" rating="3" />
    <Rating id="3" movie_id="0" rating="4" />
</dataset> 

show us“create table”for Movie我用“create table”电影更新了我的帖子。。。