\nSo, let’s start Spring Bean.<\/p>\n
![\"Spring](\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/07\/Spring-Bean-Definition-01.jpg\")
<\/a>Spring Bean Definition – Spring Configuration Metadata<\/p><\/div>\n
2. What is Spring Bean?<\/h2>\n
Spring Beans are the objects that form the backbone of the application. These are managed by the Spring IoC container<\/strong><\/a>. It does it by instantiating and assembling the bean object. These objects are created with the configuration metadata which is applied to the container like in the form of XML <bean\/> which you have already seen. Do you know how to Install Spring Framework<\/strong><\/a> There are three important methods which provide configuration metadata. These methods are:<\/p>\n You have already seen XML based configuration metadata but you will see an example with methods like lazy initialization, initialization,\u00a0and destruction:<\/p>\n Let’s Study about 5 Standard of Event Handlers<\/a><\/strong><\/p>\n Now let\u2019s define a Hello world example using the Eclipse IDE so as to get a better understanding of it with the steps as follows:<\/p>\n The code for HelloWorld.java:<\/strong> The code for MainApp.java:<\/strong> Follow this link to know about Spring Custom Event\u00a0<\/a><\/strong> If you run the application and if everything is correct you will achieve the following output: Hence, in this article, we have learned about the Spring Bean definition and the configuration metadata. We also saw how they are managed by the Spring IoC container. A working example was also defined so as to get detail analysis of the topic. If you have any query, feel free to ask in the comment section. 1. Objective In our last tutorial, we studied Spring Boot CLI. Here, in this Spring Bean Tutorial, we will get to know about the Beans in Spring Framework and how to define Spring Bean....<\/p>\n","protected":false},"author":5,"featured_media":20284,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64],"tags":[1688,4352,7749,13243,13244,13245,13247,13251,13258,13260,13262,13265,13284,15969],"class_list":["post-20280","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spring","tag-bean-in-spring-framewrk","tag-example-of-spring-beans","tag-java-based-configuration","tag-spring-bean-annotation-example","tag-spring-bean-configuration-xml","tag-spring-bean-context","tag-spring-bean-example","tag-spring-bean-life-cycle","tag-spring-bean-object-creation","tag-spring-bean-scope","tag-spring-bean-tutorial","tag-spring-beans","tag-spring-configuration-metadata","tag-what-is-spring-bean"],"yoast_head":"\n
\nThe configuration metadata which contains the information about Spring Bean definitions needs the container to know the things like:<\/p>\n\n
\nAll of the metadata configurations contains set of properties that make a Spring bean definition. These are as follows:<\/p>\n\n
3. Spring Configuration Metadata<\/h2>\n
\n
<?xml version = \"1.0\" encoding = \"UTF-8\"?>\r\n<beans xmlns = \"http:\/\/www.springframework.org\/schema\/beans\"\r\n\u00a0\u00a0 xmlns:xsi = \"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\u00a0\u00a0 xsi:schemaLocation = \"http:\/\/www.springframework.org\/schema\/beans\r\n\u00a0\u00a0 http:\/\/www.springframework.org\/schema\/beans\/spring-beans-3.0.xsd\">\r\n\u00a0\u00a0 <!-- A simple bean definition -->\r\n\u00a0\u00a0 <bean id = \"...\" class = \"...\">\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <!-- collaborators and configuration for this bean go here -->\r\n\u00a0\u00a0 <\/bean>\r\n\u00a0\u00a0 <!-- A bean definition with lazy init set on -->\r\n\u00a0\u00a0 <bean id = \"...\" class = \"...\" lazy-init = \"true\">\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <!-- collaborators and configuration for this bean go here -->\r\n\u00a0\u00a0 <\/bean>\r\n\u00a0\u00a0 <!-- A bean definition with initialization method -->\r\n\u00a0\u00a0 <bean id = \"...\" class = \"...\" init-method = \"...\">\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <!-- collaborators and configuration for this bean go here -->\r\n\u00a0\u00a0 <\/bean>\r\n\u00a0\u00a0 <!-- A bean definition with destruction method -->\r\n\u00a0\u00a0 <bean id = \"...\" class = \"...\" destroy-method = \"...\">\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <!-- collaborators and configuration for this bean go here -->\r\n\u00a0\u00a0 <\/bean>\r\n\u00a0\u00a0 <!-- more bean definitions go here -->\u00a0\u00a0\r\n<\/beans>2<\/pre>\n
4. Example using Eclipse IDE<\/h2>\n
\n
\npackage com.example;<\/p>\npublic class HelloWorld {\r\n\u00a0\u00a0 private String message;\r\n\u00a0\u00a0 public void setMessage(String message){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 this.message\u00a0 = message;\r\n\u00a0\u00a0 }\r\n\u00a0\u00a0 public void getMessage(){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(\"Your Message : \" + message);\r\n\u00a0\u00a0 }\r\n}<\/pre>\n
\npackage com.example;<\/p>\nimport org.springframework.context.ApplicationContext;\r\nimport org.springframework.context.support.ClassPathXmlApplicationContext;\r\npublic class MainApp {\r\n\u00a0\u00a0 public static void main(String[] args) {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 ApplicationContext context = new ClassPathXmlApplicationContext(\"Beans.xml\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 HelloWorld obj = (HelloWorld) context.getBean(\"helloWorld\");\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 obj.getMessage();\r\n\u00a0\u00a0 }\r\n}<\/pre>\n
\nThe Beans.xml file is as defined:<\/strong><\/p>\n<?xml version = \"1.0\" encoding = \"UTF-8\"?>\r\n<beans xmlns = \"http:\/\/www.springframework.org\/schema\/beans\"\r\n\u00a0\u00a0 xmlns:xsi = \"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\r\n\u00a0\u00a0 xsi:schemaLocation = \"http:\/\/www.springframework.org\/schema\/beans\r\n\u00a0\u00a0 http:\/\/www.springframework.org\/schema\/beans\/spring-beans-3.0.xsd\">\r\n\u00a0\u00a0 <bean id = \"helloWorld\" class = \"com.example.HelloWorld\">\r\n\u00a0\u00a0\u00a0\u00a0 <property name = \"message\" value = \"Hello World!\"\/>\r\n\u00a0\u00a0 <\/bean>\r\n<\/beans><\/pre>\n
\nYour Message: Hello World!<\/strong>
\nThe annotation based configuration is described in the coming article (annotation based) separately<\/strong>.
\nSo, this was all about Spring Bean Tutorial. Hope you like our explanation.<\/p>\n5. Conclusion<\/h2>\n
\nRelated Topic-\u00a0Spring Framework Architecture <\/a><\/strong>
\nFor reference<\/a><\/strong><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"