小编Ker*_* Hu的帖子

我想使用Dockerizing MongoDB并将数据存储在本地卷中.

但......失败了......

它有mongo:最新的图像

kerydeMacBook-Pro:~ hu$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
mongo               latest              b11eedbc330f        2 weeks ago         317.4 MB
ubuntu              latest              6cc0fc2a5ee3        3 weeks ago         187.9 MB

我想将单声道数据存储在〜/ data中.所以---

kerydeMacBook-Pro:~ hu$ docker run -p 27017:27017 -v ~/data:/data/db --name mongo -d mongo
f570073fa3104a54a54f39dbbd900a7c9f74938e2e0f3f731ec8a3140a418c43

但是......它不起作用......

docker ps - 没有守护进程mongo

kerydeMacBook-Pro:~ hu$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

尝试运行"mongo" - 失败

kerydeMacBook-Pro:~ hu$ docker exec -it f57 bash
Error response from daemon: Container f57 is …

我使用Spring Boot并包含jackson-datatype-jsr310在Maven中:

<dependency>
    <groupId>com.fasterxml.jackson.datatype</groupId>
    <artifactId>jackson-datatype-jsr310</artifactId>
    <version>2.7.3</version>
</dependency>

当我尝试使用具有Java 8日期/时间类型的RequestParam时,

@GetMapping("/test")
public Page<User> get(
    @RequestParam(value = "start", required = false)
    @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime start) {
//...
}

并使用以下URL测试它:

/test?start=2016-10-8T00:00

我收到以下错误:

{
  "timestamp": 1477528408379,
  "status": 400,
  "error": "Bad Request",
  "exception": "org.springframework.web.method.annotation.MethodArgumentTypeMismatchException",
  "message": "Failed to convert value of type [java.lang.String] to required type [java.time.LocalDateTime]; nested exception is org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.String] to type [@org.springframework.web.bind.annotation.RequestParam @org.springframework.format.annotation.DateTimeFormat java.time.LocalDateTime] for value '2016-10-8T00:00'; nested exception is java.lang.IllegalArgumentException: Parse attempt failed for …

我使用"angular2 webpack"和"angular2/form,Observable",但遇到错误,需要帮助..

有一个自定义表单验证器 -

import {Observable} from 'rxjs/Rx';
import {REACTIVE_FORM_DIRECTIVES,FormControl, FormGroup, Validators} from '@angular/forms';

emailShouldBeUnique(control:FormControl) {
    return new Observable((obs:any)=> {
      control.valueChanges
        .debouceTime(400)
        .distinctUntilChanged()
        .flatMap(term=>return !this.userQuery.emailExist(term))
        .subscribe(res=> {
            if (!res) {obs.next(null)}
            else {obs.next({'emailExist': true}); }; }
        )});}

我可以找到文件 "/projection_direction/node_modules/rxjs/operator/debounceTime.js"

为什么会有这样的错误 -

属性'debouceTime'在'Observable'类型上不存在.

我创建了一个 docker 卷“hello”，它包含一些数据。

怎么复制到本地？

第一的 ：

kerydeMacBook-Pro:~ hu$ docker volume create --name hello
hello

检查：

kerydeMacBook-Pro:~ hu$ docker volume ls
DRIVER              VOLUME NAME
local               hello

卷“你好”检查

kerydeMacBook-Pro:~ hu$  docker volume inspect hello
[
    {
        "Name": "hello",
        "Driver": "local",
        "Mountpoint": "/mnt/sda1/var/lib/docker/volumes/hello/_data"
    }
]

如何将卷“hello”复制到本地？

我尝试：

kerydeMacBook-Pro:~ hu$  docker cp hello:/mnt/sda1/var/lib/docker/volumes/hello/_data /Users/hu/Desktop/12
Error response from daemon: no such id: hello

它不像预期的那样工作！

谁能帮我 ？

我想在同一个请求中实现post文件和Json数据.

以下是上传文件代码:

upload(url:string,file:File):Observable<{complate:number,progress?:number,data?:Object}>{


    return Observable.create(observer => {
      const formData:FormData = new FormData(),
        xhr:XMLHttpRequest = new XMLHttpRequest();
      formData.append('uploadfile', file);


      formData.append("_csrf", this.tokenService.getCsrf());
      xhr.open('POST',url, true);
      xhr.onreadystatechange = () => {
        if (xhr.readyState === 4) {
          if (xhr.status === 200) {
            observer.next({complate:1,progress:100,data:JSON.parse(xhr.response)});
            observer.complete();
          } else {
            observer.error(xhr.response);
          }
        }
      };

      xhr.upload.onprogress = (event) => {
        observer.next({complate:0,progress:Math.round(event.loaded / event.total * 100)});
      };


      const headers=new Headers();
      let token: string = localStorage.getItem('access-token');
      xhr.setRequestHeader('Authorization', `Bearer ${token}`);
      xhr.send(formData);
    }).share();

如何与angular2 http.post(url,JSON.stringify(data))集成.

我使用@ ng-bootstrap/ng-bootstrap和Angular2-cli

与NgbDatepicker遇到了错误:

NgModule:

@NgModule({
  imports: [CommonModule,NgbModule.forRoot()],
  declarations: [TestComponent],
  exports: [TestComponent]
})

零件 -

导出类TestComponent实现OnInit {

model:NgbDateStruct;

}

和html--

<ngb-datepicker #dp [(ngModel)] ="model"> </ ngb-datepicker>

将TestModule添加到另一个模块时

@NgModule({
  imports: [SharedModule,LoginRoutingModule,TestModule],
  declarations: [LoginComponent],
})

和HTML:

<app-test></app-test>

有错误:

error_handler.js:47EXCEPTION: Uncaught (in promise): Error: Template parse errors:
Can't bind to 'ngModel' since it isn't a known property of 'ngb-datepicker'.
1. If 'ngb-datepicker' is an Angular component and it has 'ngModel' input, then verify that it is part of this module.
2. …

我研究 spring cloud eureka，cloud 并且它们工作得很好。但是在eureka服务中添加了安全性后，却遇到了一些错误。

所有代码和错误细节都在https://github.com/keryhu/eureka-security

eureka 服务 application.yml

security:
  user:
    name: user
    password: password

eureka: 
  client:
    registerWithEureka: false
    fetchRegistry: false
  server:
    wait-time-in-ms-when-sync-empty: 0 

和 config-service application.java

@SpringBootApplication
@EnableConfigServer
@EnableDiscoveryClient

配置服务应用程序.yml

eureka:
  client:
    registry-fetch-interval-seconds: 5
    serviceUrl:
       defaultZone: http://user:password@${domain.name:localhost}:8761/eureka/

spring:  
  cloud:
     config:
       server:
         git:
           uri: https://github.com/spring-cloud-samples/config-repo
           basedir: target/config 

启动config-service后有错误导出：

2016-04-10 11:22:39.402 ERROR 80526 --- [get_localhost-3] c.n.e.cluster.ReplicationTaskProcessor   : Batch update failure with HTTP status code 401; discarding 1 replication tasks
2016-04-10 11:22:39.402  WARN 80526 --- [get_localhost-3] c.n.eureka.util.batcher.TaskExecutors    : Discarding 1 tasks …

我的操作系统是：ubuntu：15.10

我想使用官方的docker-hub redis，但是遇到了问题。

我的docker-compose.yml

version: '2'
services:

  redis:
    image: redis
    ports:
      - "6379:6379"
    volumes:
      -  ~/dbdata/redis_conf/redis.conf:/usr/local/etc/redis/redis.conf
    volumes_from:
      -  redisdata
    environment:
      - REDIS_PASSWORD: 29c4181fb842b5f24a3103dbd2ba17accb1f7e3c8f19868955401ab921
    command: redis-server /usr/local/etc/redis/redis.conf

redisdata:
    image: redis
    volumes:
      - /home/keryhu/dbdata/redisdb:/data
    command: --break-redis

我将默认的redis.conf复制到“〜/ dbdata / redis_conf / redis.conf”目录。然后只需将“ requirepass”修改为“ 29c4181fb842b5f24a3103dbd2ba17accb1f7e3c8f19868955401ab921”

当我启动容器时，我遇到了一个错误-

*** FATAL CONFIG FILE ERROR ***
Reading the configuration file, at line 103
>>> 'logfile /var/log/redis/redis-server.log'
Can't open the log file: No such file or directory

可以帮我 ？

我使用ng-bootstrap Angular 2.

    <nav class="navbar navbar-fixed-top navbar-dark bg-inverse"> 
        <ul class="nav navbar-nav">  
           <li class="nav-item">
                <a class="nav-link" href="#">About</a>
           </li>
            <li class="nav-item">
                <div ngbDropdown>
                  <button class="btn" ngbDropdownToggle>Projects</button>
                  <div class="dropdown-menu">
                    <button class="dropdown-item"  >AA</button>
                  </div>
                </div>
            </li>
        </ul>
     </nav>

问题"下拉菜单"无法扩展

我想在webpack bootstrap 4 env中这样做:

http://v4-alpha.getbootstrap.com/components/forms/#custom-forms

文件浏览器

<label class="custom-file">
  <input type="file" id="file" class="custom-file-input">
  <span class="custom-file-control"></span>
</label>

如何覆盖"占位符" 和"按钮标签"值

我使用Spring Mongo Data Rest和querydsl

域：具有属性：

 @DateTimeFormat(iso = ISO.DATE_TIME)

  private LocalDateTime registerTime; 

要使用Json，我添加：

杰克逊数据类型jsr310

LocalDateTime可以工作：

“ http：// localhost：8001 / api / users ”

它显示：'2016-10-26T21：08：58.91'

当我将querydsl与控制器一起使用时：

 @GetMapping("/admin/queryWithPage")
        public Page<User> get(
                @PageableDefault(page = 0, size = 10, sort = "id", direction = Sort.Direction.DESC) Pageable pageable,

                @RequestParam(value = "registerTimeBegin", required = false)
                @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime registerTimeBegin,
                @RequestParam(value = "registerTimeEnd", required = false)
                @DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME) LocalDateTime registerTimeEnd,

        ){
        QUser user=new QUser("user");
        Predicate registerTimePredicate=null;

        boolean registerTimeNotNull=registerTimeBegin!=null&&registerTimeEnd!=null;

         if(registerTimeNotNull){
                    registerTimePredicate=user.registerTime.
                            between(registerTimeBegin,registerTimeEnd);
                }

       return  repository.findAll(registerTimePredicate,pageable);

    }

它有错误： …

我使用angular2 cli。

测试导航相对遇到的问题：

路由配置：

{
    path: '',
    component: CheckCompanyComponent,
    children:[
      {
        path:'',
        loadChildren: 'app/components/company/check-company-home/check-company-home.module#CheckCompanyHomeModule'
      },
      {
        path:':id',
        loadChildren: 'app/components/company/check-company-detail/check-company-detail.module#CheckCompanyDetailModule'
      }
    ]
  }

在check-company-home组件中

goIdPage(){
    this.router.navigate(['22'], { relativeTo: this.route });
  }

可以从“ / company”导航到“ / company / 22”

在check-company-detail组件中：

goBack(){
    this.router.navigate(['../'], { relativeTo: this.route });
  }

但是无法将表格“ / company / 22”导航到“ / company”，

为什么？

我构建了一个 spring 云服务，包含 eureka、user-service(spring-data-rest user api) 和一个 feign-client 服务。

在假客户端：

@FeignClient("useraccount")
public interface UserFeign {
    @RequestMapping(method=RequestMethod.POST,value="/users",consumes = "application/json")
    void createUser(@RequestBody User user);
    @RequestMapping(method=RequestMethod.DELETE,value="/users/{id}")
    void delById (@PathVariable("id") String id);

我想通过调用 user-service api 在 feign-client 中实现删除和存储用户。所以，我创建了一个休息控制器（js 向他们传输数据）：

@Autowired
    private UserFeign userFeign;

//save controller 

@RequestMapping(method = RequestMethod.POST, value = "/property/register")
    public  ResponseEntity<?>  createUser(@RequestBody User user) {
            userSaveFeign.createUser(user);
            return   ResponseEntity.ok();
    }


// and delete controller 

@RequestMapping(method = RequestMethod.DELETE, value = "/property/{id}")
    public String hello(@PathVariable("id") String id){
            userSaveFeign.delById(id);
        }
        return "hello";
    }

但它总是遇到错误：

2016-04-16 20:05:41.162 …