问题描述
示例: class Course 和 Teacher 多对一关系,如何通过 Spring-data rest 为某门课程更换教师?
Example: class Course and Teacher having many-to-one relationship, how to change teacher for a certain course via Spring-data rest?
GET http://localhost:7070/study-spring-data/course/2
回复:
{ "name" : "CSCI-338 Hardcore Java", "_links" : [ { "rel" : "course.Course.teacher", "href" : "http://localhost:7070/study-spring-data/course/2/teacher" }, { "rel" : "self", "href" : "http://localhost:7070/study-spring-data/course/2" } ] } GET http://localhost:7070/study-spring-data/course/2/teacher
回复:
{ "_links" : [ { "rel" : "course.Course.teacher", "href" : "http://localhost:7070/study-spring-data/course/2/teacher/1" } ] }
如上图,课程2与教师1关联,如何将教师更改为教师2?
As above shown, course 2 is associated with teacher 1, how to change teacher to teacher 2?
我试过了:
课程名称更新成功:
PUT http://localhost:7070/study-spring-data/course/2带有效载荷
{ "name" : "CSCI-223 Hardcore C++", }
不成功尝试更新参考对象教师时:
unsuccessful when try to update reference object teacher:
PUT http://localhost:7070/study-spring-data/course/2/teacher
有负载
{ "_links" : [ { "rel" : "course.Course.teacher", "href" : "http://localhost:7070/study-spring-data/course/2/teacher/2" } ] }
谢谢!
推荐答案
这样的事情怎么样:
curl -v -X PUT -H "Content-Type: text/uri-list" -d "http://localhost:7070/study-spring-data/teacher/1" http://localhost:7070/study-spring-data/course/123/teacher
这是 O'Reilly 的 Spring Data book 建议的一种方式.
This is a way suggested by O'Reilly's Spring Data book.