[JAVA] moved! JSF + CDI on Tomcat and Bean Validation
Introduction
Up to the last time, I created an environment setting for running JSF + CDI on Tomcat and an application for checking the operation.
This time, I would like to add a function to this and run Bean Validation.
Click here for the last time-> "It worked! JSF + CDI (Environment settings) with Tomcat"
The environment is as usual:
- mac os
- java13
- Eclipse for Enterprise Java Developers (2020-09)
- Tomcat 9.0.39
Implementation
The implementation procedure is as follows. We will add functions to the previous operation check application.
- Install the
Bean Validationlibrary in the maven settings. - Add annotation to BackingBean attribute
- Add message
maven settings
Use ExtVal of myfaces. Since this refers to validation-api-1.0.0GA, hibernate-validator uses the slightly older 4.3.2.Final.
pom.xml
<dependency>
<groupId>org.apache.myfaces.extensions.validator.validation-modules</groupId>
<artifactId>myfaces-extval-bean-validation</artifactId>
<version>2.0.8</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>4.3.2.Final</version>
<scope>runtime</scope>
</dependency>
Add annotation
We will add functions to the previous operation check application.
Add the required validators to your login and password.
First, add an annotation (@NotNull) to the Index Bean.
InexBean.java
public class IndexBean implements Serializable {
@NotNull
private String loginId;
@NotNull
private String password;
//Omitted below
}
Next is xhtml (excerpt).
index.html
<body>
<h:messages escape="true" id="messages" showDetail="false" closable="true"/>
<h:form id="form">
<br/>
<h:inputText value="#{index.loginId}" label="username" ph:placeholder="Username" /><br/>
<h:inputSecret value="#{index.password}" label="password" ph:placeholder="Password" /><br/>
<h:commandButton action="#{index.loginEvent()}" value="Login" update="@form" />
</h:form>
</body>
Up to this point, display the screen and press the login button. It will be as follows.
This is fine, but I would like to make the message in Japanese. ValidationMessage_ja.properties
Create properties under src / main / resources.
ValidationMessage_ja.properties
javax.faces.validator.BeanValidator.MESSAGE={0}
javax.validation.constraints.NotNull.message={1}Is mandatory
I will not explain in detail, but the first line is the display format of the message used when JSF executes Bean Validation. A message is set to {0} and displayed on the screen.
The second line is the message. The key corresponds to the Bean Validation Not Null. For {1}, the value specified by the label attribute of xhtml is set.
This area is controlled by JSF.
Add this file to faces-config.xml to make it recognized by JSF.
faces-config.xml
<application>
<message-bundle>ValidationMessages</message-bundle>
</application>
Complete
After implementing the above, display the screen and press the login button.
did it~!
that's all.
Other notes
BeanVaidation is also good with bval-jsr.
In this case, place javaee-api-8.0.4.jar under tomcat / lib. Add it to pom as it is needed for compilation. (It doesn't work with <scope> compile </ scope>. Place it in tomcat / lib.)
TomEE is better if you do so far.
pom.xml
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.apache.bval</groupId>
<artifactId>bval-jsr</artifactId>
<version>2.0.5</version>
</dependency>