Spring, Angular.js 400 Bad Request - angularjs

Question

I'm having a hard time figuring out why this request encounter 400 BAD request :
{
email: "ccc#gmail.com"
lastfmUsername: "bluecun"
password: "$2a$10$if246VMeosRCNJibodEhueXGyQNiAHeJd3KVHi7WedjByECYeXO5."
username: "bluecun"
}
Here is my model and controller code :
public class User {
private Long id;
private String username;
private String lastfmUsername;
private String email;
private String password;
...
}
#RequestMapping(value = "/register", method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE,
produces = MediaType.APPLICATION_JSON_VALUE)
public
#ResponseBody
void register(#RequestBody User user) throws Exception {
semanticGraphDao.saveUser(user);
}
Thanks for the answers.

Answer 1

First you need to check if you JSON is wellformed, which means: properties surrounded by quotes and a colon between each property, for example:
{
"email": "ccc#gmail.com",
"lastfmUsername": "bluecun",
"password": "$2a$10$if246VMeosRCNJibodEhueXGyQNiAHeJd3KVHi7WedjByECYeXO5.",
"username": "bluecun"
}
On the top of that, check the constructor of your User class. It must have a default constructor:
public class User {
private Long id;
private String username;
private String lastfmUsername;
private String email;
private String password;
public User() {
}
// Getters and Setters
}
And finally, check Spring boot logs - probably it is showing some kind of exception from Jackson, which will guide you on how to solve the mapping issue.