[英]How can I force Spring DATA REST @PathVariable entity exists
對於注入@PathVariable
實體,我的意思是
@RequestMapping(method = RequestMethod.PUT, path = "{project-id}")
@Transactional
@PreAuthorize("#user.id == #project.userId")
public Object update(@P("user") @Current User user,
@P("project") @PathVariable Project entity,
@RequestBody @Valid ProjectPost request) {
setProjectPostToEntity(entity, request);
return ResponseEntity.ok(ImmutableMap.of("message", "Project update successful"));
}
但是,如果在存儲庫中找不到project-id
則@PathVariable Project entity
將為null,我想要的是這樣的東西
@RequestMapping(method = RequestMethod.PUT, path = "{project-id}")
@Transactional
@PreAuthorize("#user.id == #project.userId")
public Object update(@P("user") @Current User user,
@P("project") @PathVariable @Valid @NotNull(message="Update project not exists") Project entity,
@RequestBody @Valid ProjectPost request) {
setProjectPostToEntity(entity, request);
return ResponseEntity.ok(ImmutableMap.of("message", "Project update successful"));
}
如果未在存儲庫中找到project-id
,則會返回一條消息: Update project not exists
,但@Valid @NotNull(message="Update project not exists")
在這里不起作用,我該怎么做?
使用setProjectPostToEntity(entity, request)
方法創建服務,並使用@Transactional
和@PreAuthorize
對其進行注釋。 這種方法確保您的變量將存在。 關於控制器方法上的@Transactional
: https : //stackoverflow.com/a/23120647/5649869
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