Java, Programming

JSP use Expression Language to Access Spring Bean


In Spring bean you can easily access other beans. There have 3 methods to get beans in Java class.

Java Annotation:

private MyBean bean;


<bean id="person" class="org.springframework.beans.TestBean" scope="prototype">
    <property name="age" value="10"/>
    <property name="spouse">
        <bean class="org.springframework.beans.TestBean">
            <property name="age" value="11"/>

or get a bean in run time:

ApplicationContext context =  WebApplicationContextUtils.getWebApplicationContext(getServletContext());
Object bean = context.getBean("myBean");

In JSP, You can use the third method to get Spring bean, but I don’t like add Java code into JSP file.

Here have a method, you can get Spring bean in JSP file without Java code.

Setup a Spring Web MVC XML file and add 1 property in viewResolver:

<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="exposeContextBeansAsAttributes" value="true"/>

Now, You can get bean content in JSP like that:

<c:out value="${ bean.value }" />

Spring will auto inject all bean into JSP file.

Tags: ,