如何在Spring-data rest中更新引用对象？ [英] How to update reference object in Spring-data rest?

问题描述

示例：课程课程和教师有多对一的关系，如何通过Spring-data rest来改变某个课程的老师？

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"
  } ]
}

如上所示，课程2与教师有关她1，如何将老师改为老师2？

As above shown, course 2 is associated with teacher 1, how to change teacher to teacher 2?

我试过：

成功更新了课程名称：

PUT http：// localhost：7070 / study-spring-data / course / 2
有效载荷

PUT http://localhost:7070/study-spring-data/course/2 with payload

    {
      "name" : "CSCI-223 Hardcore C++",
    }

不成功：

PUT http://localhost:7070/study-spring-data/course/2/teacher

有效载荷

    {
      "_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一书建议的方式。

This is a way suggested by O'Reilly's Spring Data book.

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