java - 休息删除错误请求

Question

你能解释一下为什么 DELETE 方法(Edit.js 中的 store.remove())抛出 400 错误请求吗？其他方法效果很好。在标题请求 url 中似乎没问题“http://localhost:8080/Diary/rest/notes/22?_dc=1461837327580”。

我知道问题出在 DELETE 方法的负载中，store.remove() 包括 ID 作为负载。我怎样才能禁用它并发送没有正文的 DELETE 方法，因为 ID 已经在 URL 中

休息服务

@Path("/notes")
public class NoteRestService {
@Context
private UriInfo uriInfo;
@Context
private HttpServletRequest request;



private NoteDaoImpl noteDao = new NoteDaoImpl();
@GET
@Produces("application/json")
public String getNotes(){
    String login = request.getSession(true).getAttribute("login").toString();
    List<Note> notes = noteDao.getUserNotes(login);
    return new Gson().toJson(notes);
}

@POST
@Consumes("application/json")
public Response postNote(Note note){
    String login = request.getSession(true).getAttribute("login").toString();
    note.setUser(login);
    noteDao.persist(note);
    URI noteUri = uriInfo.getAbsolutePathBuilder().path(Long.toString(note.getId())).build();
    return Response.created(noteUri).build();
}

@PUT
@Path("{id}")
@Consumes("application/json")
public Response updateNote(@PathParam("id") String id,Note note){
    String login = request.getSession(true).getAttribute("login").toString();
    Note editNote = noteDao.getNote(Long.parseLong(id));
    note.setCreated(editNote.getCreated());
    note.setUser(login);
    noteDao.update(note);
    return Response.ok().build();
}

@DELETE
@Path("{id}")
public Response deleteNote(@PathParam("id") String id){
    Note note = noteDao.getNote(Long.valueOf(id));
    if (note==null){
        throw new NotFoundException();
    }
    noteDao.delete(Long.parseLong(id));
    return Response.noContent().build();
}
}

EditController.js

Ext.define('MVC.controller.Edit', {
extend: 'Ext.app.Controller',


init: function () {
    this.control({
        'editForm > button#SaveRecord': {
            click: this.onSaveButtonClick
        },
        'editForm > button#DeleteButton': {
            click: this.onDeleteButtonClick
        }
    });
},

onSaveButtonClick: function (btn) {
    //get reference to the form
    var detailView = btn.up('editForm');

    //get the form inputs
    var data = detailView.getValues();

    //see if the record exists
    var store = Ext.getStore('TestStore');
    console.log(data.id);
    var record = store.getById(data.id);

    if (!record) {
        record = Ext.create('MVC.model.Note', {
            title: data.title,
            created: new Date(),
            updated: new Date(),
            text: data.text
        });
        Ext.MessageBox.alert('Created', data.title);

        store.insert(0, record);
        store.sync();
        return;
    }

    record.set(data);

    store.sync();
    //manually update the record
    detailView.updateRecord();
},

onDeleteButtonClick: function (btn) {

    //get reference to the form
    var detailView = btn.up('editForm');

    //get the form inputs
    var data = detailView.getValues();

    var store = Ext.getStore('TestStore');
    var record = store.getById(data.id);
    store.remove(record);
    store.sync();
}
});

UPD:商店

Ext.define('MVC.store.TestStore', {
extend: 'Ext.data.Store',

requires: [
    'MVC.model.Note'
],

storeId: 'TestStore',
model: 'MVC.model.Note',
autoLoad: false,
proxy: {
    type: 'rest',
    url: 'rest/notes',
    actionMethods: {
        create: 'POST',
        read: 'GET',
        update: 'PUT',
        destroy:' DELETE'
    },
    reader: {
        type: 'json',
        rootProperty: 'data'
    },
    writer: {
        type: 'json',
        writeAllFields: true
    }
}
});

Answer 1

HttpMethod.DELETE 不能有正文。

这在 RFC 中没有明确说明，但是如果您在 delete 方法中有一个代理服务器，一些代理服务器将拒绝主体。 Spring 降低了标准，并会以Bad Request 拒绝您的查询。

删除正文和答案以解决您的问题。

检查此以获取更多信息: Is an entity body allowed for an HTTP DELETE request?