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package com.websystique.springmvc.configuration; import Now to make the application complete, we will add service layer, dao layer, views, Domain object, sample database schema and run the application. To override those default by your own custom [internationalized] messages from an external Message bundle [.properties file], we need to configure a Size.employee.name=Name must be between and characters long Not Null.employee.joining Date=Joining Date can not be blank Not Null.employee.salary=Salary can not be blank Digits.employee.salary=Only numeric data with max 8 digits and with max 2 precision is allowed Not Empty.employee.ssn=SSN can not be blank type Mismatch=Invalid format non.unique.ssn=SSN already exist. package com.websystique.springmvc.configuration; import javax.servlet. Abstract Annotation Config Dispatcher Servlet Initializer; public class App Initializer extends Abstract Annotation Config Dispatcher Servlet Initializer package com.websystique.springmvc.controller; import Method As for as Annotation based configuration goes,this is all we need to do. Session Factory; import org.springframework.beans.factory.annotation. Autowired; import org.springframework.context.annotation. Bean; import org.springframework.context.annotation. Component Scan; import org.springframework.context.annotation. Configuration; import org.springframework.context.annotation. Message Source; import org.springframework.context.annotation. Bean; import org.springframework.context.annotation. Component Scan; import org.springframework.context.annotation. Configuration; import org.springframework.context.support. Resource Bundle Message Source; import org.servlet. View Resolver; import org.servlet.config.annotation. In case of validation failure, default error messages are shown. UPDATE: Note that above class can be written even more concisely [and it’s the preferred way], by extending package com.websystique.springmvc.configuration; import org.servlet.support. Valid; import org.springframework.beans.factory.annotation. This peace of code demonstrate a way to fill it custom errors outside the validation framework as well while still using internationalized messages. Notice above, that Session Factory we have created earlier in step 3, will be autowired here. My SQLDialect hibernate.show_sql = true hibernate.format_sql = true package com.websystique.springmvc.configuration; import org.springframework.context. In this post, we are working with form submission, validating user input (via JSR303 annotations). Dispatcher Servlet; public class App Initializer implements Web Application Initializer , assigning the mapping (url-pattern in xml) and instead of providing the path to spring configuration file(spring-servlet.xml) , here we are registering the Configuration Class. Message Source; import org.springframework.stereotype. If not, we generate validation error and redirect to registration page. It provides the wrapper methods for common hibernate operations. Driver = jdbc:mysql://localhost:3306/websystique jdbc.username = myuser jdbc.password = mypassword hibernate.dialect = org.hibernate.dialect. Jstl View; @Configuration @Enable Web Mvc @Component Scan(base Packages = "com.websystique.springmvc") public class App Config configures a view resolver to identify the real view. Web Application Initializer; import org.context.support. Annotation Config Web Application Context; import org.servlet. Before saving/updating an employee, we are checking if the SSN is unique. Session Factory; import org.springframework.beans.factory.annotation. Autowired; public abstract class Abstract Dao This Generic class is the base class for all DAO implementation classes. List; import org.springframework.beans.factory.annotation. Let’s create the actual Employee Entity itself whose instances we will be playing with in database. After all, we are here to learn together, aren’t we? Hibernate Transaction Manager; import org.hibernate4. Local Session Factory Bean; import org.springframework.transaction.annotation. Enable Transaction Management; @Configuration @Enable Transaction Management @Component Scan() @Property Source(value = ) public class Hibernate Configuration jdbc.driver Class Name = com. Binding Result; import org.springframework.validation. We have also included code to check for SSN uniqueness as it is declared to be unique in database. Restrictions; import org.springframework.stereotype. Repository; import com.websystique.springmvc.model. Employee; @Repository("employee Dao") public class Employee Dao Impl extends Abstract Dao package com.websystique.springmvc.service; import Service; import org.springframework.transaction.annotation. Note that since the transaction are on method scope, and inside method we are using DAO, DAO method will be executed within same transaction. You & your friends can always link my site from your site on and share the learning. In case of validation failure, custom error messages(as we have configured in step 4) are shown. Employee Dao; import com.websystique.springmvc.model. Employee; @Service("employee Service") @Transactional public class Employee Service Impl implements Employee Service which starts a transaction on each method start, and commits it on each method exit ( or rollback if method was failed due to an error). If you appreciate the effort I have put in this learning site, help me improve the visibility of this site towards global audience by sharing and linking this site from within and beyond your network. Notice that Binding Result must come right after the validated object else spring won’t be able to validate and an exception been thrown. I would love to hear your thoughts on these articles, it will help me improve further our learning process. Request Method; import com.websystique.springmvc.model. Employee; import com.websystique.springmvc.service. Employee Service; @Controller @Request Mapping("/") public class App Controller contains the outcome of this validation and any error that might have occurred during this validation. If you like tutorials on this site, why not take a step further and connect me on Facebook , Google Plus & Twitter as well? In the Next post, we will tests this application thoroughly with unit & integration tests, using Test NG, Mockito, DBUnit and testing best practices. Now click on SSN link (which is an update) of 2nd record to update it: Now edit some fields, in addition change the SSN value to a value for an existing record: Try to update, you should get validation error on SSN: Fix that error by changing SSN to unique value, update, and then view complete list of records, update changes should be taken into account: Finally check the database at this moment : That’s it. Open browser and browse at Hibernate Example/ Now click on “Add New Employee”, and click on Register button wihtout filling any detail: Now fill the details Click on Register, you should get something similar to: Click on list to go to listing: Now add few records as before: Now click on delete link of Second record, it should get deleted. Now build the war (either by eclipse as was mentioned in previous tutorials) or via maven command line( : For those of us, who prefer to deploy and run from within eclipse, and might be facing difficulties setting Eclipse with tomcat, the detailed step-by-step solution can be found at : How to setup tomcat with Eclipse.
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