java - How to update reference object in Spring-data rest? -

example: class course , teacher having many-to-one relationship, how change teacher course via spring-data rest?

get http://localhost:7070/study-spring-data/course/2 

response:

{   "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"   } ] }  http://localhost:7070/study-spring-data/course/2/teacher 

response:

{   "_links" : [ {     "rel" : "course.course.teacher",     "href" : "http://localhost:7070/study-spring-data/course/2/teacher/1"   } ] } 

as above shown, course 2 associated teacher 1, how change teacher teacher 2?

i have tried:

successfully updated course name:

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

    {       "name" : "csci-223 hardcore c++",     } 

unsuccessful when try update reference object teacher:

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

with payload

    {       "_links" : [ {         "rel" : "course.course.teacher",         "href" : "http://localhost:7070/study-spring-data/course/2/teacher/2"       } ]     } 

thanks!

how this:

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 

this way suggested o'reilly's spring data book.