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屬性文件配置tomcat的相關配置

屬性文件配置

這段代碼用于讀取屬性文件的內容，必須配置

SpringBoot熱部署屬性配置文件

SpringBoot實現熱部署

增刪改 用REQUIRED? 查詢采用Support

注解：

@RestController:就相當于@Controller+@ResponseBody的作用
一個注解解決了兩個注解的作用，又節(jié)約了資源哈哈

使用官方地址生成項目 https://start.spring.io

springboot定時任務

import?org.slf4j.Logger;
import?org.slf4j.LoggerFactory;
import?org.springframework.scheduling.annotation.Scheduled;
import?org.springframework.stereotype.Component;

import?java.util.Date;

/**
?*?定時任務
?*/
@Component
public?class?TimeSchedule?{
????
????private?static?final?Logger?logger?=?LoggerFactory.getLogger(TimeSchedule.class);

????@Scheduled(fixedRate?=?60000)
????private?void?time()?{
????????logger.info("這是定時任務的時間：{}?一分鐘一次",?new?Date());
????}
}

import?org.springframework.scheduling.annotation.Async;
import?org.springframework.scheduling.annotation.AsyncResult;
import?org.springframework.stereotype.Component;

import?java.util.concurrent.Future;

@Component
public?class?MyAsync?{

????@Async
????public?Future<Boolean>?task1()?throws?InterruptedException?{
????????long?currentTimeMillis?=?System.currentTimeMillis();
????????Thread.sleep(5000);
????????long?currentTimeMillis1?=?System.currentTimeMillis();
????????System.out.println("task1任務耗時:"?+?(currentTimeMillis1?-?currentTimeMillis)?+?"ms");
????????return?new?AsyncResult<>(true);
????}

????@Async
????public?Future<Boolean>?task2()?throws?InterruptedException?{
????????long?currentTimeMillis?=?System.currentTimeMillis();
????????Thread.sleep(2000);
????????long?currentTimeMillis1?=?System.currentTimeMillis();
????????System.out.println("task2任務耗時:"?+?(currentTimeMillis1?-?currentTimeMillis)?+?"ms");
????????return?new?AsyncResult<>(true);
????}

????@Async
????public?Future<Boolean>?task3()?throws?InterruptedException?{
????????long?currentTimeMillis?=?System.currentTimeMillis();
????????Thread.sleep(3000);
????????long?currentTimeMillis1?=?System.currentTimeMillis();
????????System.out.println("task3任務耗時:"?+?(currentTimeMillis1?-?currentTimeMillis)?+?"ms");
????????return?new?AsyncResult<>(true);
????}
}

@Resource
private?MyAsync?myAsync;//異步執(zhí)行任務使用注入方式調用

/**
?*?異步任務測試
?*
?*?@return?花費時間
?*?@throws?InterruptedException?線程sleep來模擬任務花費時間
?*/
@ResponseBody
@RequestMapping(value?=?"myAsync")
public?Result?myAsync()?throws?InterruptedException?{
????long?currentTimeMillis?=?System.currentTimeMillis();
????Future<Boolean>?a1?=?myAsync.task1();
????Future<Boolean>?a2?=?myAsync.task2();
????Future<Boolean>?a3?=?myAsync.task3();
????waitingAsync(a1,?a2,?a3);
????long?use?=?System.currentTimeMillis()?-?currentTimeMillis;
????logger.info("task任務總耗時:{}ms",?use);
????return?Result.ok(use);
}

/**
?*?等待異步全部完成
?*
?*?@param?futures?異步執(zhí)行等待結果
?*/
@SafeVarargs//注解表名可變個數參數的類型是安全的，否則會警告
private?static?void?waitingAsync(Future<Boolean>...?futures)?{
????boolean?loop?=?true;
????while?(loop)?{
????????loop?=?false;
????????for?(Future<Boolean>?future?:?futures)?{
????????????if?(future.isCancelled())?continue;//跳過被取消了的任務
????????????if?(!future.isDone())?loop?=?true;//如果沒完成則繼續(xù)等待
????????}
????}
}

熱部署

事務的配置