随笔分类 - Java
摘要：Controller: Code below shows a basic Controller to handle GET, POST; DELETE, PUT requests. Model: Im memory data: This is just a mock data. package he
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摘要：In Spring boot, define a REST API endpoint is pretty easy.
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摘要：We might have some project specific configuration need to setup. The good approach to do this in Sprint is using 'Proptries'. In resouces/applicationC
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摘要：We can define a class to be Singleton or Prototype. If the class was defined as Prototype, then everytime when we use new keyword, it will create a ne
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摘要：There is no applicationContext.xml file. Too much XML Namespaces helped Enter Java Configuration Create main/java/com.pluralsight/AppConfig.java: 1. S
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摘要：Add context to our application. main/resources/applicationContext.xml: Using annotation for @Service @Repository @Controller: /repository/HibernateCus
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摘要：Previous we have seen constructore injection: https://www.cnblogs.com/Answer1215/p/9484872.html It would be easier to using autowire to reduce the cod
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摘要：Previous we see how to do Setter injection: https://www.cnblogs.com/Answer1215/p/9472117.html Now let's see how to cover setter injection to coustruct
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摘要：In CustomerServiceImpl.java, we hardcoded 'HibernateCustomerRepositoryImpl' To remove hardcoded Repository, we can use Setter Injection. First, we def
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摘要：We mainly need to modify our Model and REST endpoint code to enable swagger Document. model/Book.java: By doing this, we can get each model defination
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摘要：1. We have the BookEndpoint.java: 2. Creating a test for the REST endpoint:
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摘要：1. Create a rest folder with JAXRSConfiguration.java: 2. Create Endpoint file: BookEndpoint.java:
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摘要：So what is a Bean, in JavaEE, any class expect Entity are Bean. One usefully thing in Bean is Dependency injection. Just like Angular, it is just a Cl
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摘要：When we create Entity and Respority, we also need to do validations to protect our data. In Java, validations are built-in, using decorators. For Type
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摘要：We have model like this: 1 package com.pluralsight.bookstore.model; 2 3 import javax.persistence.*; 4 import java.util.Date; 5 6 /** 7 * @author Anton
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摘要：Mainly two things: 1. For all the creating and deleting opreations for the DB, we want to use 'REQUIRED' for the transaction. 2. For all the read only
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摘要：To bootsrap the application use the following Maven archetype: mvn -DarchetypeGroupId=org.codehaus.mojo.archetypes -DarchetypeArtifactId=webapp-javaee
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摘要：package com.learning; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; im
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