What are some tricks in Java spring?

Asked by Last Modified  

2 Answers

Learn Java

Follow 1
Answer

Please enter your answer

Rajesh kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Java Spring Tricks & Best Practices 1. Use @RestController Instead of @Controller + @ResponseBody @RestController public class MyController { @GetMapping("/hello") public String hello() { return "Hello, World!"; } } 2. Enable Caching with @Cacheable @Cacheable("users") public...
read more
Java Spring Tricks & Best Practices 1. Use @RestController Instead of @Controller + @ResponseBody @RestController public class MyController { @GetMapping("/hello") public String hello() { return "Hello, World!"; } } 2. Enable Caching with @Cacheable @Cacheable("users") public User getUserById(Long id) { return userRepo.findById(id).get(); } 3. Use @Transactional for Automatic Rollback @Transactional public void transferMoney(Account from, Account to, double amount) { /* logic */ } 4. Profile-Based Configurations (@Profile) @Profile("dev") @Service public class DevService { /* Development-specific code */ } 5. Use @Async for Background Tasks @Async public void sendEmail(String to) { /* Async email sending logic */ } 6. Externalize Configs with @Value @Value("${app.name}") private String appName; 7. Use Lombok to Reduce Boilerplate Code @Getter @Setter @AllArgsConstructor public class User { private String name; priv ate int age; } Want advanced Spring tricks? read less
Comments
Dislike Bookmark

Experienced Full Stack Developer and Instructor.

Use @Value to Inject Config Value Use @ConfigurationProperties for Structured Configs Profiles with @Profile Use @RestControllerAdvice for Global Exception Handling
Comments
Dislike Bookmark

Related Questions

What will be the output of the program? public class X { public static void main(String [] args) { try { badMethod(); System.out.print("A"); } catch (RuntimeException ex) /* Line 10 */ { System.out.print("B"); } catch (Exception ex1) { System.out.print("C"); } finally { System.out.print("D"); } System.out.print("E"); } public static void badMethod() { throw new RuntimeException(); } } A. BD B. BCD C. BDE D. BCDE
It will be BDE
Srikanth
Why is finally introduced in Java?
finally is block which executes every time regardless exception has occurred or not. Finally is important in case you want to do some task which must be done like clean-up, db connection closure, memory de-allocation etc.
Agastya
best source to learn java from?
Main source if information on Java is oracle documentation. But it takes your time to read through, a lot more than you expect. Better prefer a trainer who can give what you need.
Himanshu
Why Java is platform independent?
Once your java code compiled, compiled code(.class) can be executed on any os platform...if your question is HOW..it is interesting which deals with bytecode conversation
Sunita
What should I do after learning Java core?
After mastering Java core, consider expanding your skills by exploring more advanced Java topics such as: Object-Oriented Programming (OOP): Deepen your understanding of OOP principles and design patterns. Java...
Kumarnaik
0 0
5

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

What Is Applet & Its Life Cycle?
What is Applet & its life cycle?Applet is a Java programme that can be embedded into HTML page.Java Applet runs on the java enables web browsers such as Mozilla & Internet Explorer.Applets are...
I

ICreative Solution

0 0
0
Try to clear up the basics, if basics are clear then you can go ahead with any difficult problem
Hey guys, To all the students i just want to convey that just clear up your basics so that they can help you solve anyu problem and you would achieve a great success. Regards, Ishani Chakraborty

Ishani Chakraborty

0 0
0
A Tip for the beginners.
The world of programming languages right now is too dense, and too big for any beginner. But at the same time, because of so many options available, it's easier too. You can start with any language that...

Ramiz Mehran

0 0
0
1.1. Reverse an array in Java.
public class Main { public static void main(String args) { int arr = {1, 2, 3, 4, 5}; for (int i = 0; i < arr.length / 2; i++) { int temp = arr; arr = arr; arr = temp; } System.out.println(Arrays.toString(arr)); }}

Vivek J.

0 0
0
Design Pattern
Prototype Design Pattern: Ø Prototype pattern refers to creating duplicate object while keeping performance in mind. Ø This pattern involves implementing a prototype interface which tells...

Paras Chawla

0 0
0

Recommended Articles

Why Should You Learn Java !

Java is the most famous programming language till date. 20 years is a big time for any programming language to survive and gain strength. Java has been proved to be one of the most reliable programming languages for networked computers. source:techcentral.com Java was developed to pertain over the Internet. Over...

Read full article >

Java: An Object-Oriented Language

Java is the most commonly used popular programming language for the creation of web applications and platform today. Integrated Cloud Applications and Platform Services Oracle says, “Java developers worldwide has over 9 million and runs approximately 3 billion mobile phones”.  Right from its first implication as java 1.0...

Read full article >

Some Popular IT Courses in Current Market

In the domain of Information Technology, there is always a lot to learn and implement. However, some technologies have a relatively higher demand than the rest of the others. So here are some popular IT courses for the present and upcoming future: Cloud Computing Cloud Computing is a computing technique which is used...

Read full article >

Why Java is the Most Popular Programming Language

Designed in a flexible and user-friendly demeanor, Java is the most commonly used programming language for the creation of web applications and platform. It allows developers to “write once, run anywhere” (WORA). It is general-purpose, a high-level programming language developed by Sun Microsystem. Initially known as an...

Read full article >

Find Java Training Classes near you
Java Training Classes in Bangalore
Java Training Classes in Hyderabad
Java Training Classes in Pune
Java Training Classes in Chennai
Java Training Classes in Delhi
Java Training Classes in Mumbai
Java Training Classes in Kolkata
Java Training Classes in Noida
Java Training Classes in Gurgaon
Java Training Classes in Ghaziabad
Online Java Training

Looking for Java Training Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you