spring boot注入+遠程debug啓動

查看spring boot官網文檔:

以下是一個 @Service Bean，其使用構造注入方式獲取一個必需的 RiskAssessor bean。

package com.example.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class DatabaseAccountService implements AccountService {

    private final RiskAssessor riskAssessor;

    @Autowired
    public DatabaseAccountService(RiskAssessor riskAssessor) {
        this.riskAssessor = riskAssessor;
    }

    // ...

}

如果 bean 中只有一個構造方法，您可以忽略掉 @Autowired 註解。

@Service
public class DatabaseAccountService implements AccountService {

    private final RiskAssessor riskAssessor;

    public DatabaseAccountService(RiskAssessor riskAssessor) {
        this.riskAssessor = riskAssessor;
    }

    // ...

}

提示

請注意，構造注入允許 riskAssessor 字段被修飾爲 final，這表示以後它不能被更改。

也可以不使用final修飾

 

如下例子:

controller

package com.wm.test.controller;

import com.wm.test.service.HelloServiceImpl;
import com.wm.test.service.TestServiceImpl;
import lombok.AllArgsConstructor;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/***
 * @ClassName: TestController
 * @Description: 測試Controller
 * @Author: wm_yu
 * @Create_time: 15:25 2019-10-17
 */
@RestController
@RequestMapping("/test")
@AllArgsConstructor
public class TestController {

    private  final HelloServiceImpl helloService;

    private TestServiceImpl testService;

    /**
     *
     * @return
     */
    @GetMapping("/hello")
    public String test(String name){
        String s = helloService.test(name);
        return s;
    }

    /**
     *
     * @return
     */
    @GetMapping("/test")
    public String hello(String name){
        String s = testService.test(name);
        return s;
    }


}

service:

package com.wm.test.service;

import org.springframework.stereotype.Service;

/***
 * @ClassName: HelloServiceImpl
 * @Description:
 * @Author: wm_yu
 * @Create_time: 10:03 2019-11-12
 */
@Service
public class HelloServiceImpl {

        public String test(String name){
            return String.format("hell,%s",name);
        }

}

 

package com.wm.test.service;

import org.springframework.stereotype.Service;

/***
 * @ClassName: TestServiceImpl
 * @Description:
 * @Author: wm_yu
 * @Create_time: 10:09 2019-11-12
 */
@Service
public class TestServiceImpl {

    public String test(String name){
        return String.format("hell,%s",name);
    }
}

 

上面的例子可以使用final修飾,也可以不修飾

 

下面是設置遠程debug啓動:

編寫一個簡單的項目:

controller:

package com.wm.mi.controller;

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

/***
 * @ClassName: HelloController
 * @Description:
 * @Author: wm_yu
 * @Create_time: 16:35 2019-11-11
 */
@RestController
@RequestMapping("/yu")
public class HelloController {

    @GetMapping("/hello")
    public String hello(@RequestBody String name){
        return String.format("hell0,%s",name);
    }
}

將項目打包成jar:

mvn package

如下:

 

普通啓動爲:

     java -jar mi-0.0.1-SNAPSHOT.jar

 

設置debug端口啓動:

java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=8000,suspend=n \
        -jar mi-0.0.1-SNAPSHOT.jar

 

 

在idea中設置debug遠程配置調試:

 

 

啓動測試就可以了,官方文檔如下:

spring boot官方文檔