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How to use <jsp:getProperty> action in JSP?
The getProperty action is used to retrieve the value of a given property and converts it to a string, and finally inserts it into the output.
The getProperty action has only two attributes, both of which are required. The syntax of the getProperty action is as follows −
<jsp:useBean id = "myName" ... /> ... <jsp:getProperty name = "myName" property = "someProperty" .../>
Following table lists out the required attributes associated with the getProperty action −
| Sr.No. | Attribute & Description |
|---|---|
| 1 |
name The name of the Bean that has a property to be retrieved. The Bean must have been previously defined. |
| 2 |
property The property attribute is the name of the Bean property to be retrieved. |
Example
Let us define a test bean that will further be used in our example −
/* File: TestBean.java */
package action;
public class TestBean {
private String message = "No message specified";
public String getMessage() {
return(message);
}
public void setMessage(String message) {
this.message = message;
}
}
Compile the above code to the generated TestBean.class file and make sure that you copied the TestBean.class in C:\apache-tomcat-7.0.2\webapps\WEB-INF\classes\action folder and the CLASSPATH variable should also be set to this folder −
Now use the following code in main.jsp file. This loads the bean and sets/gets a simple String parameter −
<html> <head> <title>Using JavaBeans in JSP</title> </head> <body> <center> <h2>Using JavaBeans in JSP</h2> <jsp:useBean id = "test" class = "action.TestBean" /> <jsp:setProperty name = "test" property = "message" value = "Hello JSP..." /> <p>Got message....</p> <jsp:getProperty name = "test" property = "message" /> </center> </body> </html>
Let us now try to access main.jsp, it would display the following result −
Using JavaBeans in JSP
Got message.... Hello JSP...
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