[英]method marked with @AssertTrue is not invoked
I have following class to validate: 我有以下课程来验证:
@Document(collection = "settings")
public class Settings {
@NotEmpty
private String[] allowableExtensions;
...
@AssertTrue(message = "Each extension must be alphanumeric string with length {2,4}")
public boolean assertTrue() {
for (String extension : allowableExtensions) {
if (extension == null || extension.matches("^[a-zA-Z0-9]{2,6}$")) {
return false;
}
}
return true;
}
}
and following controller: 并跟随控制器:
@PostMapping(value = "/settings/update", consumes = "application/json")
public ResponseEntity<?> updateSettings(@RequestBody @Valid Settings settings, BindingResult bindingResult) {
if(bindingResult.hasErrors()){
return ResponseEntity.badRequest().body(bindingResult.getAllErrors().get(0).getDefaultMessage());
}
}
I didn't find expected errors and put breakpoint into assertTrue method but it doesn't invoke. 我没有找到预期的错误并将断点放入assertTrue方法但它没有调用。
What do I wrong? 我错了什么?
assertTrue
method does not follow JavaBean convention and you are not doing method validation, hence it is never called and you don't get the violation you are expecting. assertTrue
方法不遵循JavaBean约定,并且您没有进行方法验证,因此它永远不会被调用,并且您不会得到您期望的违规。 So for example if you change your Setting
class to something like 例如,如果您将
Setting
类更改为类似的类
public class Settings {
@NotEmpty
private String[] allowableExtensions;
@AssertTrue(message = "Each extension must be alphanumeric string with length {2,4}")
public boolean isAssertTrue() {
for ( String extension : allowableExtensions ) {
if ( extension == null || extension.matches( "^[a-zA-Z0-9]{2,6}$" ) ) {
return false;
}
}
return true;
}
}
you should get this Settings#isAssertTrue
method called and result validated. 你应该调用这个
Settings#isAssertTrue
方法并验证结果。
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