Spring MVC 400 Bad Request Ajax

我一直在Ajax上请求400 Bad Request。 我不知道这会有什么问题。 我正在使用：

 org.codehaus.jackson jackson-mapper-asl 1.9.12   org.springframework spring-webmvc 4.0.5.RELEASE  

控制器：

 @Controller("bookController") @RequestMapping("/book") public class BookControllerImpl implements BookController { @Autowired BookService bookService; @Override @RequestMapping(value = "/new", method = RequestMethod.GET) public String addBookToSystem(Model model) { model.addAttribute("book", new Book()); return "book/newBook"; } @Override @RequestMapping(value = "/new", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE) public @ResponseBody Book addBookToSystem(@RequestBody Book book) { book.setBookStatus(BookStatus.AWAITING); return bookService.get(bookService.save(book)); } 

Ajax调用：

 $(document).ready(function(){ $('#addBook').submit(function(event) { var ISBN = $('#ISBN').val(); var author = $('#author').val(); var description = $('#description').val(); var pages = $('#pages').val(); var publicationYear = $('#publicationYear').val(); var publisher = $('#publisher').val(); var title = $('#title').val(); var json = { "ISBN" : ISBN, "author" : author, "description" : description, "pages" : pages, "publicationYear" : publicationYear, "publisher" : publisher, "title" : title }; $.ajax({ url: $("#addBook").attr("action"), data: JSON.stringify(json), type: "POST", dataType: 'json', contentType: 'application/json', success: function(book) { var respContent = ""; respContent += "Dodano "; respContent += book.title; respContent += " do listy ksiazek oczekujacych na zatwierdzenie!"; $("#bookResponse").html(respContent); } }); event.preventDefault(); }); }); 

HTTP请求：

 POST /ksiazka/book/new.json HTTP/1.1 Host: localhost:8080 Connection: keep-alive Content-Length: 100 Accept: application/json, text/javascript, */*; q=0.01 Origin: http://localhost:8080 X-Requested-With: XMLHttpRequest User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36 Content-Type: application/json Referer: http://localhost:8080/ksiazka/book/new Accept-Encoding: gzip,deflate Accept-Language: pl-PL,pl;q=0.8,en-US;q=0.6,en;q=0.4,pt;q=0.2 Cookie: SPRING_SECURITY_REMEMBER_ME_COOKIE=bWFjaWVqbWlzMkBnbWFpbC5jb206MTQxNzUzODc3ODU4NjpjYjY3YTZiMWYyMGJjODYyMDYxMDQyNDIyN2NmNjQ3Mg; JSESSIONID=c5a72acb3bd1a165f9c2d705a199 

响应：

 HTTP/1.1 400 Bad Request Server: GlassFish Server Open Source Edition 4.1 X-Powered-By: Servlet/3.1 JSP/2.3 (GlassFish Server Open Source Edition 4.1 Java/Oracle Corporation/1.8) Content-Language: Content-Type: text/html Date: Tue, 04 Nov 2014 19:49:08 GMT Connection: close Content-Length: 1105 

任何想法如何解决这个问题？ 作为基础，我使用了本教程。 我搜索并阅读了400 Bad Request错误的大多数线程，但它没有解决我的问题。

编辑：图书课程：

  @Entity @Table(name="Book") @Indexed public class Book { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "bookId") private Long id; @Column(nullable = false) @Field(index = Index.YES, analyze=Analyze.YES, store=Store.NO) private String title; @Column(nullable = false, unique = true) private String ISBN; @Column(nullable = false) @Field(index = Index.YES, analyze=Analyze.YES, store=Store.NO) private String author; private String publisher; @Column(length = 1000) private String description; private int publicationYear; private int pages; @Enumerated(EnumType.STRING) @Column(nullable = false) private BookStatus bookStatus; @ManyToMany(mappedBy = "booksWant", cascade = CascadeType.ALL) private List user = new ArrayList(0); @OneToMany(mappedBy = "book", cascade = CascadeType.ALL) private List bookList = new ArrayList(0); public Book(String title, String ISBN, String author, String publisher, String description, int publicationYear, int pages, BookStatus bookStatus) { this.title = title; this.ISBN = ISBN; this.author = author; this.publisher = publisher; this.description = description; this.publicationYear = publicationYear; this.pages = pages; this.bookStatus = bookStatus; } getters and setters } 

EDIT2：

         
book/newBook.jsp
 
 
 
 Add a book to system: 
 
  
 
 
isbn: 
 
 
 
 
 
Autor: 
 
 
 
 
 
Tytul: 
 
 
 
 
 
Opis: 
 
 
 
 
 
Ilosc stron: 
 
 
 
 
 
Rok wydawania: 
 
 
 
 
 
Wydawca: 
 
 
 
 
 
 
 
  
   

Answer 1

我解决了我的问题。 以下是我为了使其工作所做的事情：首先，我改变了对jackson2的依赖

  com.fasterxml.jackson.core jackson-annotations 2.4.3   com.fasterxml.jackson.core jackson-core 2.4.3   com.fasterxml.jackson.core jackson-databind 2.4.3  

然后我用@JsonProperty和@JsonIgnore注释我的Book类。 这是我更新的Book课程

  @Entity @Table(name="Book") @Indexed public class Book { @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "bookId") @JsonIgnore private Long id; @Column(nullable = false) @Field(index = Index.YES, analyze=Analyze.YES, store=Store.NO) @JsonProperty("title") private String title; @Column(nullable = false, unique = true) @JsonProperty("ISBN") private String ISBN; @Column(nullable = false) @Field(index = Index.YES, analyze=Analyze.YES, store=Store.NO) @JsonProperty("author") private String author; @JsonProperty("publisher") private String publisher; @Column(length = 1000) @JsonProperty("description") private String description; @JsonProperty("publicationYear") private int publicationYear; @JsonProperty("pages") private int pages; @Enumerated(EnumType.STRING) @Column(nullable = false) @JsonIgnore private BookStatus bookStatus; @ManyToMany(mappedBy = "booksWant", cascade = CascadeType.ALL) @JsonIgnore private List user = new ArrayList(0); @OneToMany(mappedBy = "book", cascade = CascadeType.ALL) @JsonIgnore private List bookList = new ArrayList(0); public Book(String title, String ISBN, String author, String publisher, String description, int publicationYear, int pages, BookStatus bookStatus) { this.title = title; this.ISBN = ISBN; this.author = author; this.publisher = publisher; this.description = description; this.publicationYear = publicationYear; this.pages = pages; this.bookStatus = bookStatus; } getters and setters } 

Answer 2

从ajax调用中删除“’contentType：’application / json’，”