Jersey2 中的 @PUT 和 @Post

Question

我的配置 Spring Boot、JQuery、Html 模板 jn WildFly 10 中出现 415 错误。 @PUT 和@POST：

    @POST
    //@Path("/create")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response createCustomers(@FormParam("firstname") String firstname,
                                    @FormParam("lastname") String lastname,
                                    @FormParam("email") String email,
                                    @FormParam("dateborn") String dateborn,
                                    @FormParam("pass") String pass,
                                    @Context UriInfo uriInf
    ){
        CustomersEntity customer = new CustomersEntity();
        customer.setFirstname(firstname);
        customer.setLastname(lastname);
        customer.setEmail(email);
        customer.setDateborn(dateborn);
        customer.setPass(pass);
        customerService.save(customer);
        long id = customer.getId();

        URI createdUri = uriInf.getAbsolutePathBuilder().path(Long.toString(id)).build();
        return Response.created(createdUri).build();
    }

    @PUT
    @Path("/{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response updateCustomers(@PathParam("id") Long id,

                                @FormParam("customerFn") String firstname,
                                    @FormParam("customerLn") String lastname,
                                    @FormParam("customerEmail") String email,
                                    @FormParam("customerDb") String dateborn,
                                    @FormParam("customerPass") String pass
                                   ) {
        CustomersEntity inDb = customerService.findOne(id);
        if (inDb == null){
            throw new WebApplicationException(Response.Status.NOT_FOUND);
        }
        else {
        inDb.setFirstname(firstname);
        inDb.setLastname(lastname);
        inDb.setEmail(email);
        inDb.setDateborn(dateborn);
        inDb.setPass(pass);
        customerService.update(inDb);
        }
        return Response.noContent().build();
    }

HTML 表单：

<form id="customerForm" method="POST" action="/customers">

    <div class="mainArea">

        <label>Id:</label>
        <input id="custId" name="id" type="text" disabled="disabled" />

        <label>First Name:</label>
        <input type="text" id="custFn" name="customerFn" required="required" />

        <label>Last Name:</label>
        <input type="text" id="custLn" name="customerLn" />

        <label>Email:</label>
        <input type="text" id="custEmail" name="customerEmail" />

        <label>Date Born:</label>
        <input type="text" id="custDb" name="customerDb" />

        <label>Pass:</label>
        <input type="text" id="custPass" name="customerPass" />

        <button id="btnSaveCustomer">Save</button>
        <button id="btnDeleteCustomer">Delete</button>
    </div>
</form>

部分 JQuery：

function addCustomer() {
    console.log('addCustomer');
    $.ajax({
        type: 'POST',
        contentType: 'application/json',
        url: customerlistURL,// + '/create',
        dataType: "json",
        data: formToJSON(),
        success: function(data, textStatus, jqXHR){
            alert('Customer created successfully');
            $('#btnDeleteCustomer').show();
            $('#custId').val(data.id);
        },
        error: function(jqXHR, textStatus, errorThrown){
            alert('addCustomer error: ' + textStatus);
        }
    });
}

function updateCustomer() {
    console.log('updateCustomer');
    $.ajax({
        type: 'PUT',
        contentType: 'application/json',
        url: customerlistURL + '/' + $('#custId').val(),
        dataType: "json",
        data: formToJSON(),
        success: function(data, textStatus, jqXHR){
            alert('Customer updated successfully');
        },
        error: function(jqXHR, textStatus, errorThrown){
            alert('updateCustomer error: ' + textStatus);
        }
    });
}

function deleteCustomer() {
    console.log('deleteCustomer ' + $('#custId').val());
    $.ajax({
        type: 'DELETE',
        url: customerlistURL + '/' + $('#custId').val(),
        success: function(data, textStatus, jqXHR){
            alert('Customer deleted successfully');
        },
        error: function(jqXHR, textStatus, errorThrown){
            alert('deleteCustomer error');
        }
    });
}

我得到：

响应标头： 状态码：415 不支持的媒体类型 连接：保持活动 日期：2017 年 6 月 12 日星期一 15:33:06 GMT 服务器：WildFly/10 传输编码：分块 X-Powered-By: Undertow/1

例外：

Caused by: java.lang.IllegalStateException: The @FormParam is utilized when the content type of the request entity is not application/x-www-form-urlencoded.

其他方法（所有@GET-s 和@DELETE）都可以正常工作。

Answer 1

如错误消息中所述，您不能将@FormParam 与application/x-www-form-urlencoded 以外的内容类型一起使用。

Answer 2

经过对这个问题的一些思考和研究，我找到了答案。 Jax-rs Jarsey2 配置从请求正文中提取数据和数据格式，无需使用额外的注释从 HTML-form 转换：

    @PUT
    @Path("{id}")
    @Consumes(MediaType.APPLICATION_JSON)
    public Response updateCustomers(@PathParam("id") Long id,
                                    CustomersEntity customer){
        CustomersEntity existCustomer = customerService.findOne(id);
        if (existCustomer == null){
            throw new WebApplicationException(Response.Status.NOT_FOUND);
        }
        else {
            existCustomer.setFirstname(customer.getFirstname());
            existCustomer.setLastname(customer.getLastname());
            existCustomer.setEmail(customer.getEmail());
            existCustomer.setDateborn(customer.getDateborn());
            existCustomer.setPass(customer.getPass());
            customerService.update(customer);
        }
        return Response.noContent().build();
    }