xUtils 关联对象查询

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对象的创建

@Table(name = "tb_child")public class Child {    @Id    private int id;    @Column(column = "name")    private String name;    @Column(column = "age")    private int age;    @Foreign(column = "parentId", foreign = "id")    private Parent parent;    /*     * 省略了toString()和get()、set()方法     */}

@Table(name = "tb_parent")public class Parent {    @Id    private int id;    @Column(column = "name")    private String name;    @Column(column = "age")    private int age;    @Finder(valueColumn = "id", targetColumn = "parentId")    public FinderLazyLoader<Child> children;    //@Finder(valueColumn = "id",targetColumn = "parentId")    //public Child children;    //@Finder(valueColumn = "id", targetColumn = "parentId")    //private List<Child> children;    /*     * 省略了toString()和get()、set()方法     */}

关联对象的查询

DbUtils dbUtils = DbUtils.create(this);Parent parent = dbUtils.findFirst(Selector.from(Parent.class).orderBy("id", true));List<Child> children = parent.getChildren().getAllFromDb();