• JAVA Application

    Memory Leak Monitoring

    Java is not really efficient in its garbage collection so we need to be mindful of potential memory leaks. Here we list two ways to help identify …


  • JAVA Logging - SLF4J

    Java log发展历史: * System.out.println * java.until.logging (JDK1.4) * log4j: Ceki Gülcü将Log4j捐献给了Apache * LogBack: Ceki Gülcü出走后另起炉灶,开发出LogBack,受到LogBack的冲击,2015年9月Apache软件基金业宣布Log4j不再维护 * Log4J2是Apache开发的一个新的日志框架,改进了很多 …


  • Nacos

    Nacos是一个开源的、易于使用的、功能强大的动态服务发现、配置管理和服务管理平台。Nacos的设计目标是实现一个易于使用的、功 …


  • Email Service

    生成邮件模板并发送邮件

    async function sendEmail(
      email: string,
      filename: string,
      content: Buffer,
      subject = "材料下载"
    ) {
      const htmlTemplate = await generateHtmlForFileDownload();
      const …

  • Knex

    https://knexjs.org/guide/

    Knex can be used as an SQL query builder. The primary target environment for Knex is Node.js.

    $ npm install knex --save
    $ npm install mysql2 # pg …

  • Drupal

    CMS

    A content management system (CMS) is a software tool that lets users add, publish, edit, or remove content from a website.

    Drupal is a flexible CMS based on the …


  • 文件上传

    解析 Content-Type: multipart/form-data

    • formidable
    const form = new formidable({ multiples: true });
    
    form.parse(req, async (err, fields, files) => {
      if (err) {
        res.status(400).json({ error: `Invalid request: ${err}` });
        return …

  • Salesforce

    https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_select.htm

    SOQL

    SELECT FIELDS(ALL) FROM FROM <
    Object> limit 10
    
    SELECT count() FROM <
    Object>
    

  • Synapse SQL

    Synapse SQL

    1. 无法插入多条数据
    INSERT INTO "user_generated_events" (event_id)
    VALUES
    ('1'), ('2')
    

    error: QueryFailedError: Error: Parse error at line: 1, column: 325: Incorrect syntax near …


  • NEO4J

    Neo4j Desktop

    https://neo4j.com/download/

    图数据库

    Neo4j是一个高性能的,NOSQL图形数据库,它将结构化数据存储在网络上而不是表中 …


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