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Inject life into your cloud-hosted applications: 5 best practices to boost end-user experience Feel as though the performance of your cloud-hosted applications has become lacklustre?Here are five best practices that can help you boost end-user experiences, simplify performance management, and reduce the cost of your AWS environment. 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. 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. 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.
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