Java OOM 内存溢出分析

2024-04-04 23:02:36

编写OOM程序

package com.example.demo;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;

@RestController
public class TestController {
	@GetMapping("/hello")
	public void c_() throws InterruptedException {
		System.out.println("你好");
		Integer K = 1024000000;

		ArrayList<byte[]> list = new ArrayList<>();
		int i = 0;
		while (true) {
			Thread.sleep(50);
			list.add(new byte[5 * 1024 * 1024]);
			System.out.println("分配次数" + (++i));
		}
	}


}

启动类 , 名字瞎起的,不要在意细节

package com;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Demo1111Application {

	public static void main(String[] args) {
		SpringApplication.run(Demo1111Application.class, args);
	}


}