Springboot project startup optimization method

Detailed explanation of Springboot project startup optimization

Introduction to SpringBoot

SpringBoot is a framework for simplifying Spring application development.

It removes the complex configuration required to set up Spring applications.

Detailed explanation of project startup optimization

Start the optimization plan

Lazy loading

• use@LazyAnnotation delay loading
• Settings in the configuration file-initialization=true

Asynchronous initialization

@Async
@EventListener()
public void init() {
    // Initialization code}

Reduce packet scanning range

@SpringBootApplication(scanBasePackages = "")

Exclude unwanted automatic configurations

@SpringBootApplication(exclude = {
    ,
    
})

Specific implementation steps

Optimization dependency

• Remove unused dependencies
• Use spring-boot-starter-web instead of the complete spring-boot-starter

Configuration optimization

spring:
  main:
    lazy-initialization: true
    banner-mode: off
  jmx:
    enabled: false

JVM optimization

java -Xms2048m -Xmx2048m -XX:+UseG1GC -jar 

Common configurations

Application configuration

server:
  port: 8080
  servlet:
    context-path: /api

spring:
  application:
    name: my-application

Database configuration

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/db_name
    username: root
    password: root
    driver-class-name: 

Best Practices

Project structure

├── config/
├── controller/
├── service/
├── repository/
├── model/
└── 

Exception handling

@ControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler()
    public ResponseEntity<String> handleException(Exception e) {
        return (500).body(());
    }
}

Interface specifications

@RestController
@RequestMapping("/api")
public class UserController {
    @GetMapping("/users/{id}")
    public ResponseEntity<User> getUser(@PathVariable Long id) {
        // Implement code    }
}

Performance monitoring

Using Actuator

<dependency>
    <groupId></groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

Configure Metrics

management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: always

Summarize

Through the above optimization solutions, the startup speed and operating performance of SpringBoot projects can be significantly improved. Key points include:

• Use lazy loading reasonably
• Optimize automatic configuration
• JVM parameter tuning
• Reliance streamlining
• Asynchronous initialization

Continuous optimization and monitoring are key to maintaining high performance in applications.

The above is personal experience. I hope you can give you a reference and I hope you can support me more.