小编Sim*_*mon的帖子

如何为Spring MVC添加简单的分页

这是我的用户视图控制器页面:

@RequestMapping(value="/list")
    public ModelAndView listOfUsers() {
        ModelAndView modelAndView = new ModelAndView("list-of-users");

        List<User> users = userService.getUsers();
        PagedListHolder<User> pagedListHolder = new PagedListHolder<>(users);
        //pagedListHolder.setPageSize(1);
        modelAndView.addObject("users", pagedListHolder);

        return modelAndView;
    }
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这是我的JSP页面:

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<?xml version="1.0" encoding="ISO-8859-1" ?>

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>List of users</title>
</head>
<body>
<h1>List of users</h1>
<p>Here you can see the list of the users, edit them, remove or update.</p>
<table …
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spring pagination jsp spring-mvc

11
推荐指数
1
解决办法
2万
查看次数

Angular 2 CanActivate被调用两次

您好我遇到了问题.当我尝试导航到不被允许的页面时,我的CanActivate警卫会被调用两次,因为我没有登录.

我有1个根模块,并提供了我的CanActivate后卫和其他服务.

先感谢您!

这是我的路由器:

const appRoutes: Routes = [
    {
        path: "",            
        pathMatch: "full",
        redirectTo: "/meal-list",
    },
    {
        path: "login",
        component: LoginComponent,
    },
    {
        path: "meal-list",
        component: MealListComponent,
        canActivate: [AuthActivateGuard],
    }  
];


export const routing: ModuleWithProviders = RouterModule.forRoot(appRoutes, {useHash: true});
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守卫:

@Injectable()
export class AuthActivateGuard implements CanActivate {


  constructor(private authService: AuthService,
              private router: Router) {
    console.log("guard created");
  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean>|boolean {
    if (!this.authService.authenticated) {
      return this.authService.checkLogged().map(res => {
        this.authService.authenticated = true;
        return true;
      }).catch(()=> {
        this.authService.authenticated = …
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angular2-routing angular

10
推荐指数
2
解决办法
2979
查看次数

Spring Boot WebFlux NettyServerCustomizer 不起作用

我有一个非常简单的应用程序,我读到我可以使用 NettyServerCustomizer 来自定义 NettyServer。但它不起作用,没有调用 NettyServerCustomizer 接口的实现。项目由 Spring Initializr 生成

申请代码:

@SpringBootApplication
@RestController
@RequestMapping("/test")
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

    @GetMapping
    public Mono<String> test() {
        return Mono.just("test");
    }

    @Bean
    public NettyServerCustomizer nettyCustomizer() {
        return builder -> builder.port(9909);
    }

}
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绒球

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build> …
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spring-mvc spring-boot spring-web spring-webflux

5
推荐指数
1
解决办法
863
查看次数

Flexbox 项目多行文本溢出

我有一个里面有很长字符串的 flex 项目,我希望它被包裹起来。但它不起作用。

flex 1 1 500px例如,我设置了 ( flex-basis = 500px) 并且它应该用word wrap: break-word

但它没有,只有当我设置时width=500px,它才开始工作,所以问题是为什么flex-basis 500px不工作而宽度工作?

HTML:

<div class="map-detail-wrapper">
    <div class="ad-detail-text">
        <span>{{ad.text}}</span>
    </div>
</div>
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CSS:

.map-detail-wrapper {
    display: flex;
    flex-wrap: wrap;
}

.ad-detail-text {
    flex: 1 1 0%;
    width: 500px;
    line-height: 20px;
    font-size: 14px;
    margin: 20px;
    border: black;
    word-wrap: break-word;
    overflow: hidden;
}
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css flexbox

3
推荐指数
1
解决办法
3528
查看次数

如何修复“找不到媒体按钮接收器”异常

我正在构建媒体播放器,并希望处理来自“播放”、“暂停”等通知的操作。在我的活动中,我注册了MediaButtonReceiver

registerReceiver(MediaButtonReceiver(), IntentFilter(Intent.ACTION_MEDIA_BUTTON))
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并创建了媒体通知

val builder: NotificationCompat.Builder = MediaStyleHelper.from(this, mediaSession!!)
builder.addAction(
                NotificationCompat.Action(
                        android.R.drawable.ic_media_previous,
                        "Previous",
                        MediaButtonReceiver.buildMediaButtonPendingIntent(this, PlaybackStateCompat.ACTION_SKIP_TO_PREVIOUS)
                )
        )
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但是当我按下媒体通知上的操作按钮时,没有任何反应。当我添加这些动作时,执行

MediaButtonReceiver.buildMediaButtonPendingIntent(this, PlaybackStateCompat.ACTION_SKIP_TO_PREVIOUS)
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打印到控制台警告

“W/MediaButtonReceiver:在给定的上下文中找不到唯一的媒体按钮接收器,因此无法构建待处理的意图。”

但是,如果我以编程方式注册了它,为什么它没有注册?

android android-mediaplayer android-mediasession

2
推荐指数
1
解决办法
2646
查看次数