小编Tor*_*ora的帖子

无法使用用于使用schema.sql创建表的脚本测试Spring Boot＆H2。

因此，发生的事情是我设置了以下属性：

spring.datasource.driver-class-name=org.h2.Driver
spring.datasource.initialization-mode=always
spring.datasource.username=sa
spring.datasource.password=
spring.datasource.platform=h2
spring.datasource.url=jdbc:h2:mem:city;MODE=PostgreSQL;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE

spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
spring.jpa.generate-ddl=false
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true

并且，我希望用schema.sql文件被创建的表。该应用程序工作正常，当我运行gradle这个bootRun。但是，当我使用gradle test运行测试时，我对Repository的测试通过了，但是针对Service的测试却失败了，表明该表已经存在时它正在尝试创建表：

引发异常：

Caused by: org.h2.jdbc.JdbcSQLException: Table "CITY" already exists;             
SQL statement:
CREATE TABLE city ( id BIGINT NOT NULL, country VARCHAR(255) NOT NULL, map VARCHAR(255) NOT NULL, name VARCHAR(255) NOT NULL, state VARCHAR(2555) NOT NULL, PRIMARY KEY (id) ) [42101-196]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:179)
at org.h2.message.DbException.get(DbException.java:155)
at org.h2.command.ddl.CreateTable.update(CreateTable.java:117)
at org.h2.command.CommandContainer.update(CommandContainer.java:101)
at org.h2.command.Command.executeUpdate(Command.java:260)
at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:192)
at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:164)
at com.zaxxer.hikari.pool.ProxyStatement.execute(ProxyStatement.java:95)
at com.zaxxer.hikari.pool.HikariProxyStatement.execute(HikariProxyStatement.java)
at org.springframework.jdbc.datasource.init.ScriptUtils.executeSqlScript(ScriptUtils.java:471) …

我正在尝试将Base64字符串转换为PDF并在浏览器中下载,并且生成的PDF不可读:

app.component.html - >

<div style="text-align:center">
  <form>
    <div class="form-row text-center">
      <button type="button" class="btn div-button" (click)="showPdf()">PDF</button>
    </div>
  </form>
</div>

app.component.ts - >

import {Component} from '@angular/core';

@Component({
  selector: 'app-root',
 templateUrl: './app.component.html',
 styleUrls: ['./app.component.css']
})
export class AppComponent {
  showPdf() {
    const pdfInBase64 = '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\n';
    const newBlob = new Blob([pdfInBase64], {type: 'application/pdf'});
    if (window.navigator && window.navigator.msSaveOrOpenBlob) {
      window.navigator.msSaveOrOpenBlob(newBlob); // For IE browser
    }
    const linkElement = document.createElement('a');
    const url = URL.createObjectURL(newBlob);
    linkElement.setAttribute('href', url);
    linkElement.setAttribute('download', 'sample.pdf');
    const clickEvent = new MouseEvent('click', {
      'view': …

我下载了一个Vagrantfile并在我的CentOS 7盒子上运行它.执行时vagrant up,进程成功启动,机器启动并准备就绪.我可以使用URL访问该进程:

http://<IP_ADDRESS_OF_BOX>:8080

但是,我不希望Vagrant使用端口8080而宁愿使用像8601这样的模糊端口.因此,我修改了Vagrantfile以包含另一个条目config.vm.network.

更改之前 - Vagrantfile

Vagrant.configure(2) do |config|
    config.vm.box = 'ToraToraTora'
end

改变后 - Vagrantfile

Vagrant.configure(2) do |config|
    config.vm.box = 'ToraToraTora'
    config.vm.network "forwarded_port", guest: 80, host: 8601
end

现在我可以使用新端口访问该进程:

http://<IP_ADDRESS_OF_BOX>:8601

但是,以前的端口也继续工作:

http://<IP_ADDRESS_OF_BOX>:8080

执行sudo netstat -tulpn:

[ToraToraTora@andromeda ~]$ sudo netstat -tulpn | grep 26206
tcp        0      0 127.0.0.1:2222          0.0.0.0:*               LISTEN      26206/VBoxHeadless  
tcp        0      0 0.0.0.0:8080            0.0.0.0:*               LISTEN      26206/VBoxHeadless  
tcp        0      0 0.0.0.0:8601            0.0.0.0:*               LISTEN      26206/VBoxHeadless  
udp        0      0 0.0.0.0:40168           0.0.0.0:*                           26206/VBoxHeadless  
[ToraToraTora@andromeda …

我正在尝试在 JBoss EAP 7.1 服务器上部署 Spring Boot (2.0.2) 应用程序。

导致问题的代码是：

import javax.validation.constraints.NotBlank;
import org.springframework.stereotype.Component;
import org.springframework.validation.annotation.Validated;

@Component
@Validated
public class AppProperties {

  @NotBlank
  private String name;

当应用程序部署在 JBoss 上时，我收到以下异常：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
16:44:25,861 ERROR [org.springframework.boot.diagnostics.LoggingFailureAnalysisReporter] (ServerService Thread Pool -- 6 7)

***************************
APPLICATION FAILED TO START
***************************

Description:

Failed to bind properties under 'app' to com.example.security.config.AppProperties:

    Property: app.contextpath
    Value: /api
    Origin: class path resource [application.yml]:5:18
    Reason: HV000030: No validator …

我有一个 Angular 6 应用程序，需要将其作为 Docker 容器（Nginx 基础映像）部署到 Kubernetes 集群上。

问题：如何适应使用一次构建的相同 Docker 映像，但能够在开发和生产中运行并指向不同的 API_URL？

我的环境文件：

环境.ts

export const environment = {
  production: false,
  API_URL: 'https://dev-server.domain.com'
};

环境.产品.ts

export const environment = {
  production: true,
  API_URL: 'https://prod-server.domain.com'
};

我的nginx.conf

worker_processes 1;

events {
    worker_connections 1024;
}

http {
    server {
        listen 80;
        server_name localhost;

        root   /usr/share/nginx/html;
        index  index.html index.htm;
        include /etc/nginx/mime.types;

        gzip on;
        gzip_min_length 1000;
        gzip_proxied expired no-cache no-store private auth;
        gzip_types text/plain text/css application/json application/javascript application/x-javascript text/xml …

假设我有一个包含5列的表格：

• 年
• 公司
• 部
• 雇员
• 销售

我想查询结果以得到以下结果：

• 公司
• 部
• 雇员
• 总和（销售）

附加要求是，首先显示公司（所有部门）的“最大销售量”，然后显示公司的“最大销售量”的部门中的第一名，对于EMPLOYEE列则显示相同的情况。

成功：当我仅查询COMPANY时，以下查询工作正常：

 SELECT company,
       SUM(sales)
FROM   company_sales
GROUP  BY company
ORDER  BY SUM(SUM(sales))
            over (
              PARTITION BY company) DESC,
          company;

成功：当我按COMPANY＆DEPARTMENT分组时，以下查询工作正常：

SELECT company,
       department,
       SUM(sales)
FROM   company_sales
GROUP  BY company,
          department
ORDER  BY SUM(SUM(sales))
            over (
              PARTITION BY company) DESC,
          SUM(SUM(sales))
            over (
              PARTITION BY department) DESC,
          company,
          department;

失败：当我按公司，部门和员工分组时，以下查询失败：

SELECT company,
       department,
       employee,
       SUM(sales)
FROM   company_sales
GROUP  BY company,
          department,
          employee
ORDER  BY SUM(SUM(sales))
            over (
              PARTITION BY …