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BAEL-318: Guide to Spring WebFlow

This commit is contained in:
Stephen Braimah 2017-03-31 10:51:39 +00:00
parent 2ab1c19561
commit 300b9ab78d
15 changed files with 461 additions and 0 deletions
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1
pom.xml
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<module>spring-mvc-tiles</module>
<module>spring-mvc-velocity</module>
<module>spring-mvc-web-vs-initializer</module>
<module>spring-mvc-webflow</module>
<module>spring-mvc-xml</module>
<module>spring-mvc-simple</module>
<module>spring-openid</module>

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spring-mvc-webflow/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear

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spring-mvc-webflow/README.md Normal file
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=========
## Spring MVC with Spring Web Flow
###The Course
### Relevant Articles:
-

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spring-mvc-webflow/pom.xml Normal file
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung</groupId>
<version>0.1-SNAPSHOT</version>
<artifactId>spring-mvc-webflow</artifactId>
<name>spring-mvc-webflow</name>
<packaging>war</packaging>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- Spring Web Flow-->
<dependency>
<groupId>org.springframework.webflow</groupId>
<artifactId>spring-webflow</artifactId>
<version>${spring.webflow}</version>
</dependency>
<!-- web -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
<scope>runtime</scope>
</dependency>
<!-- logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<!-- <scope>runtime</scope> -->
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
<!-- <scope>runtime</scope> --> <!-- some spring dependencies need to compile against jcl -->
</dependency>
<dependency> <!-- needed to bridge to slf4j for projects that use the log4j APIs directly -->
<groupId>org.slf4j</groupId>
<artifactId>log4j-over-slf4j</artifactId>
<version>${org.slf4j.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
<version>${org.hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-library</artifactId>
<version>${org.hamcrest.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<version>${mockito.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>spring-mvc-webflow</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>${maven-war-plugin.version}</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>${maven-surefire-plugin.version}</version>
<configuration>
<excludes>
<!-- <exclude>**/*ProductionTest.java</exclude> -->
</excludes>
<systemPropertyVariables>
<!-- <provPersistenceTarget>h2</provPersistenceTarget> -->
</systemPropertyVariables>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<!-- Spring -->
<org.springframework.version>4.3.4.RELEASE</org.springframework.version>
<!-- Spring Web Flow-->
<spring.webflow>2.4.4.RELEASE</spring.webflow>
<!-- logging -->
<org.slf4j.version>1.7.21</org.slf4j.version>
<logback.version>1.1.7</logback.version>
<!-- testing -->
<org.hamcrest.version>1.3</org.hamcrest.version>
<junit.version>4.12</junit.version>
<mockito.version>1.10.19</mockito.version>
<javax.servlet-api.version>3.1.0</javax.servlet-api.version>
<jstl.version>1.2</jstl.version>
<httpcore.version>4.4.5</httpcore.version>
<httpclient.version>4.5.2</httpclient.version>
<rest-assured.version>2.9.0</rest-assured.version>
<!-- Maven plugins -->
<maven-compiler-plugin.version>3.6.0</maven-compiler-plugin.version>
<maven-war-plugin.version>2.6</maven-war-plugin.version>
<maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>
<maven-resources-plugin.version>2.7</maven-resources-plugin.version>
<cargo-maven2-plugin.version>1.6.1</cargo-maven2-plugin.version>
</properties>
</project>

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spring-mvc-webflow/src/main/java/org/baeldung/servlet/WebInitializer.java Normal file
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package org.baeldung.servlet;
import javax.servlet.ServletRegistration.Dynamic;
import org.baeldung.spring.WebFlowConfig;
import org.baeldung.spring.WebMvcConfig;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
public WebInitializer() {
super();
}
// API
protected Class<?>[] getRootConfigClasses() {
return new Class<?>[] { WebMvcConfig.class, WebFlowConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return null;
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
@Override
protected void customizeRegistration(final Dynamic registration) {
super.customizeRegistration(registration);
}
}

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spring-mvc-webflow/src/main/java/org/baeldung/spring/WebFlowConfig.java Normal file
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package org.baeldung.spring;
import java.util.Collections;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.webflow.config.AbstractFlowConfiguration;
import org.springframework.webflow.definition.registry.FlowDefinitionRegistry;
import org.springframework.webflow.engine.builder.support.FlowBuilderServices;
import org.springframework.webflow.executor.FlowExecutor;
import org.springframework.webflow.mvc.builder.MvcViewFactoryCreator;
@Configuration
public class WebFlowConfig extends AbstractFlowConfiguration {
@Autowired
private WebMvcConfig webMvcConfig;
@Bean
public FlowDefinitionRegistry flowRegistry() {
return getFlowDefinitionRegistryBuilder(flowBuilderServices()).addFlowLocation("/WEB-INF/flows/activation-flow.xml", "activationFlow").build();
}
@Bean
public FlowExecutor flowExecutor() {
return getFlowExecutorBuilder(flowRegistry()).build();
}
@Bean
public FlowBuilderServices flowBuilderServices() {
return getFlowBuilderServicesBuilder().setViewFactoryCreator(mvcViewFactoryCreator()).setDevelopmentMode(true).build();
}
@Bean
public MvcViewFactoryCreator mvcViewFactoryCreator() {
MvcViewFactoryCreator factoryCreator = new MvcViewFactoryCreator();
factoryCreator.setViewResolvers(Collections.singletonList(this.webMvcConfig.viewResolver()));
factoryCreator.setUseSpringBeanBinding(true);
return factoryCreator;
}
}

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spring-mvc-webflow/src/main/java/org/baeldung/spring/WebMvcConfig.java Normal file
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package org.baeldung.spring;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
import org.springframework.webflow.mvc.servlet.FlowHandlerAdapter;
import org.springframework.webflow.mvc.servlet.FlowHandlerMapping;
@EnableWebMvc // <mvc:annotation-driven />
@Configuration
// @ImportResource("classpath:/flow-definition.xml")
public class WebMvcConfig extends WebMvcConfigurerAdapter {
@Autowired
private WebFlowConfig webFlowConfig;
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/view/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
@Bean
public FlowHandlerMapping flowHandlerMapping() {
FlowHandlerMapping handlerMapping = new FlowHandlerMapping();
handlerMapping.setOrder(-1);
handlerMapping.setFlowRegistry(this.webFlowConfig.flowRegistry());
return handlerMapping;
}
@Bean
public FlowHandlerAdapter flowHandlerAdapter() {
FlowHandlerAdapter handlerAdapter = new FlowHandlerAdapter();
handlerAdapter.setFlowExecutor(this.webFlowConfig.flowExecutor());
handlerAdapter.setSaveOutputToFlashScopeOnRedirect(true);
return handlerAdapter;
}
}

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spring-mvc-webflow/src/main/resources/flow-definition.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:flow="http://www.springframework.org/schema/webflow-config"
xsi:schemaLocation="http://www.springframework.org/schema/webflow-config
http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.4.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerMapping">
<property name="flowRegistry" ref="activationFlowRegistry"/>
</bean>
<flow:flow-builder-services id="flowBuilderServices"
view-factory-creator="mvcViewFactoryCreator"/>
<bean id="mvcViewFactoryCreator" class="org.springframework.webflow.mvc.builder.MvcViewFactoryCreator">
<property name="viewResolvers" ref="jspViewResolver"/>
</bean>
<flow:flow-registry id="activationFlowRegistry" flow-builder-services="flowBuilderServices">
<flow:flow-location id="activationFlow" path="/WEB-INF/flows/activation-flow.xml"/>
</flow:flow-registry>
<bean class="org.springframework.webflow.mvc.servlet.FlowHandlerAdapter">
<property name="flowExecutor" ref="activationFlowExecutor"/>
</bean>
<flow:flow-executor id="activationFlowExecutor" flow-registry="activationFlowRegistry"/>
</beans>

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spring-mvc-webflow/src/main/resources/logback.xml Normal file
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<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>web - %date [%thread] %-5level %logger{36} - %message%n
</pattern>
</encoder>
</appender>
<logger name="org.springframework" level="WARN" />
<logger name="org.springframework.transaction" level="WARN" />
<!-- in order to debug some marshalling issues, this needs to be TRACE -->
<logger name="org.springframework.web.servlet.mvc" level="WARN" />
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>

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spring-mvc-webflow/src/main/webapp/WEB-INF/flows/activation-flow.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<flow xmlns="http://www.springframework.org/schema/webflow"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/webflow
http://www.springframework.org/schema/webflow/spring-webflow-2.0.xsd">
<view-state id="activation">
<transition on="activate" to="success"/>
<transition on="cancel" to="failure"/>
</view-state>
<view-state id="success" />
<view-state id="failure" />
</flow>

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spring-mvc-webflow/src/main/webapp/WEB-INF/view/activation.jsp Normal file
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<html>
<body>
<h2>Hello World!</h2>
<%--<a href="${flowExecutionUrl}">Start</a>--%>
<%--<input type="submit" name="_eventId_success" value="Proceed" />--%>
<%--<input type="submit" name="_eventId_failure" value="Cancel" />--%>
<form method="post" action="${flowExecutionUrl}">
<input type="hidden" name="_eventId" value="activate">
<input type="submit" value="Proceed" />
</form>
<form method="post" action="${flowExecutionUrl}">
<input type="hidden" name="_eventId" value="cancel">
<input type="submit" value="Cancel" />
</form>
</body>
</html>

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spring-mvc-webflow/src/main/webapp/WEB-INF/view/failure.jsp Normal file
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<html>
<body>
<h2>Activation Failed</h2>
</body>
</html>

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spring-mvc-webflow/src/main/webapp/WEB-INF/view/sample.jsp Normal file
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<html>
<head></head>
<body>
<h1>This is the body of the sample view</h1>
</body>
</html>

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spring-mvc-webflow/src/main/webapp/WEB-INF/view/success.jsp Normal file
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<html>
<body>
<h2>Activation Successful!</h2>
</body>
</html>

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spring-mvc-webflow/src/test/resources/.gitignore vendored Normal file
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear