场景

获取java项目启动参数。

java获取启动参数 java程序获取启动参数_spring boot

方法 

除在主函数mian中的args中获取外,还可以通过注入Spring的ApplicationArguments获取,代码如下:

import com.alibaba.fastjson.JSON;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import javax.annotation.PostConstruct;
import java.util.List;
import java.util.Set;

/**
 * LizzApp
 */
@SpringBootApplication
public class LizzApp {
    @Autowired
    private ApplicationArguments applicationArguments;

    public static void main(String[] args) {
        SpringApplication.run(LizzApp.class, args);
        System.out.println("args:" + JSON.toJSONString(args));
    }

    @PostConstruct
    public void getArgs() {
        //获取所有program arguments参数
        String[] sources = applicationArguments.getSourceArgs();
        System.out.println("sources:" + JSON.toJSONString(sources));
        // 获取其中--设置的参数名
        Set<String> optionArgs = applicationArguments.getOptionNames();
        System.out.println("optionArgs:" + JSON.toJSONString(optionArgs));
        // 获取其中非--设置的参数
        List<String> nonOptionArgs = applicationArguments.getNonOptionArgs();
        System.out.println("nonOptionArgs:" + JSON.toJSONString(nonOptionArgs));
        // 获取某参数值
        List<String> values = applicationArguments.getOptionValues("spring.profiles.active");
        System.out.println("values:" + JSON.toJSONString(values));
    }
}

输出

sources:["--spring.profiles.active=dev,10000","a=b","-d=e,f"]
optionArgs:["spring.profiles.active"]
nonOptionArgs:["a=b","-d=e,f"]
values:["dev,10000"]

args:["--spring.profiles.active=dev,10000","a=b","-d=e,f"]