how to validate if there's already a field with the same registered number (Logical problem) Problem Description: (https://i.stack.imgur.com/52C98.png) I can’t let the user enter a code that already exists in the database,so i need to make one more validation for this field "code". obviously I have to use a ‘if statement’ but i just can’t … Read more
Spring Boot Test "Failed to load ApplicationContext" Problem Description: I am getting an error while testing my rest application but can’t understand why.My error output: ava.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:98) at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:43) at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248) at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) at … Read more
Found duplicate key in application.yml Problem Description: I have been working on a kafka stream project I am new to yaml files I have been using application.properties . Basically I want to use kafka properties as well as spring fox properties here is my application.yml spring: cloud: function: definition: consumer;producer stream: kafka: bindings: producer-out-0: producer: … Read more
Field 'id' doesn't have a default value because of generated value Problem Description: My entities FoodItem.java @AllArgsConstructor @NoArgsConstructor @Builder @Entity @Setter @Getter @Table(name = "food_items", schema = "restaurant-service") @FieldDefaults(level = AccessLevel.PRIVATE) public class FoodItem { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) Long id; String name; BigDecimal price; Long restaurant_id; } Restaurant.java @AllArgsConstructor @NoArgsConstructor @Builder @Entity @Setter @Getter … Read more
Schema related problems with Flyway / Springboot and H2 in-memory database Problem Description: org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [INSERT INTO merchant_rating_detail (order_id, shop_id, user_id, rating, created_datetime, feedback_ids) VALUES(?, ?, ?, ?, ?, ?);]; nested exception is org.h2.jdbc.JdbcSQLSyntaxErrorException: Table "merchant_rating_detail" not found (this database is empty); SQL statement: INSERT INTO merchant_rating_detail (order_id, shop_id, user_id, rating, created_datetime, … Read more
Is it possible to use lambda in SpEL inside @ConditionalOnExpression Problem Description: Is it possible to use lambda for@ConditionalOnExpression in spring expression language (SpEL)? I have created the following SpEL condition via collection-selection which works fine for me. But I am not satisfied how it looks like. @ConditionalOnExpression("#{T(java.util.Arrays).asList(‘${app.sync.white-list}’).?[#this.toLowerCase() == ‘all’ or #this.toLowerCase() == ‘phone’].size() > … Read more
Is it possible to use lambda in SpEL inside @ConditionalOnExpression Problem Description: Is it possible to use lambda for@ConditionalOnExpression in spring expression language (SpEL)? I have created the following SpEL condition via collection-selection which works fine for me. But I am not satisfied how it looks like. @ConditionalOnExpression("#{T(java.util.Arrays).asList(‘${app.sync.white-list}’).?[#this.toLowerCase() == ‘all’ or #this.toLowerCase() == ‘phone’].size() > … Read more
SpringToolSuite is unable to recognize spring boot annotations Problem Description: I got a project from GitHub which is a Java spring boot application running with Maven dependencies. I am so confused why I can’t run the application successfully on STS. There’s no longer a problem on my old laptop. Because I just changed my laptop, … Read more
SpringToolSuite is unable to recognize spring boot annotations Problem Description: I got a project from GitHub which is a Java spring boot application running with Maven dependencies. I am so confused why I can’t run the application successfully on STS. There’s no longer a problem on my old laptop. Because I just changed my laptop, … Read more
How to error handle for 20 reactive async API calls in java? Problem Description: I’m writing a service that calls 20 external vendor APIs, aggregates that data and writes it to a blob storage. This is how I am calling each api, after I am using Mono.zip() and writing that result into a blob storage. … Read more