spring boot environment載入過程分析
阿新 • • 發佈:2018-11-12
environment是在printBanner之前就初始化好了, 更在context建立之前,
已經載入application-xxxx.properties, System.properties, System.environment ...
也可以自己監聽應用啟動 SpringApplicationRunListener事件, 完成自己的獨特的配置載入方案
啟動後呼叫listener.finished() 列印一些啟動後的資訊
prepareEnvironment()原始碼如下
1 privateConfigurableEnvironment prepareEnvironment( 2 SpringApplicationRunListeners listeners, 3 ApplicationArguments applicationArguments) { 4 // Create and configure the environment 5 ConfigurableEnvironment environment = getOrCreateEnvironment(); 6 7 //載入標準目錄下的配置檔案 &profile8 configureEnvironment(environment, applicationArguments.getSourceArgs()); 9 //載入自定義的配置方案 10 listeners.environmentPrepared(environment); 11 if (!this.webEnvironment) { 12 environment = new EnvironmentConverter(getClassLoader()) 13 .convertToStandardEnvironmentIfNecessary(environment);14 } 15 return environment; 16 }