删除时出现 400 Bad Request 错误

Posted 2023-02-19

【中文标题】删除时出现 400 Bad Request 错误

【英文标题】：400 Bad Request error on Delete

【发布时间】：2015-11-16 13:18:38

【问题描述】：

我和我的 m8s 正在使用 Spring MVC、angularJS 等为我们的大学开发一个手稿处理系统。我们在从数据库中删除用户时遇到了一些问题。

我们总是得到 HTTP 状态 400 - 所需的字符串参数“用户名”不存在

输入状态报告

消息所需的字符串参数“用户名”不存在

说明客户端发送的请求语法错误。

控制器：

@Secured( "ROLE_ADMIN" )
@RequestMapping(value = "/delete/userName", method = RequestMethod.DELETE)
public void deleteUser(@RequestParam String userName) 
    LOGGER.info("Deleted user: " + userName);
    userManagerService.deleteUser(userName);

ManuscriptAdminService.js 的方法：

function deleteUser(userName)
    $log.info("Delete selected user "+new Date());
    $http.delete('delete/'+userName).then(function(data)
        console.log(data);
    ,function(error)
        $log.error("Error occured while admin tried to delete user "+new Date());
    );

ManuscriptAdminController.js 的方法

    vm.showModalUserDelete = function(index) 
    $log.info("Show user delete modal "+new Date());
    var modelInstance = $modal
            .open(
                animation : true,
                templateUrl : 'htmlcontent/content/admin/modal/userDeleteManageModal.html',
                controller : 'ManuscriptAdminModalinstacneController',
                controllerAs : 'ManuscriptAdminModalinstacneController',
                size : 300,
                resolve : 
                    items : function() 
                        return ManuscriptAdminService.getUserName(index);
                    

                
            );

    modelInstance.result.then(function (result) 
        ManuscriptAdminService.deleteUser(result);
        , function () 
          $log.info('Modal dismissed at: ' + new Date());
        );

;

【参考方案1】：

您在 /delete/userName 中使用了 URI 模板变量，因此您需要在参数上使用 @PathVariable 注释：

@Secured( "ROLE_ADMIN" )
@RequestMapping(value = "/delete/userName", method = RequestMethod.DELETE)
public void deleteUser(@PathVariable String userName) 
    LOGGER.info("Deleted user: " + userName);
    userManagerService.deleteUser(userName);