When I am hitting the URL it is downloading the JSP page but when I am using HTML page, it gets rendered in the browser. || HTML 1 - 0 JSP ||
Project structure
Application properties:
spring.mvc.view.prefix=/views/
spring.mvc.view.suffix=.html
Controller
It worked when I have added tomcat-embed-jasper dependency.
Why does that happened?
- It worked when I have added tomcat-embed-jasper dependency. Why does that happened?
Because it needs a webapp container.
I have came across with the same issue, file download every-time when i hit the Page. So, I have makes some changes & error has resolved.
Adding "tomcat-embed-jasper" in pom.xml file
having same version of your tomcat
org.apache.tomcat.embed
tomcat-embed-jasper
9.0.68
Embedded tomcat consider jsp rendering as optional. That's why it is needed.Also As I can understand. You must have provided scope of tomcat-embed-jasper dependency as provided.
You can do as below :
DemoController.java :
#Controller
public class DemoController {
#GetMapping("/")
public String getLoginView(){
return "login";
}
#GetMapping("/welcoome")
public String welcome(){
return "login";
}
}
ApplicationConfigurerAdapter.java
#Configuration
#EnableWebMvc
public class ApplicationConfigurerAdapter extends WebMvcConfigurerAdapter{
#Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
configurer.enable();
}
#Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
return resolver;
}
}
DemoApplication.java
#Configuration
#EnableAutoConfiguration
#SpringBootApplication
public class DemoApplication extends SpringBootServletInitializer{
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
application.properties
server.contextPath=/
server.servlet.contextPath=/
server.port=6565
pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
You can build it as mvn package and can also run outside container(such as Tomcat)
Add this tomcat dependancy to your pom file:
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-jasper</artifactId>
</dependency>
Related
Im new to Spring Boot and was trying to implement basic Spring Security for a single endpoint in my Spring Boot controller. But I dont know how to resolve the Circular View Error
My Controller
#Controller
#RequestMapping("/api")
public class HelloSecurityController {
#RequestMapping({"/hello"})
public static String helloWorld() {
return "hello";
}
My Security Configurer Class
#EnableWebSecurity
public class SecurityConfigurer extends WebSecurityConfigurerAdapter {
#Autowired
private MyUserDetailsService myUserDetailsService;
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(myUserDetailsService);
}
#Bean
public PasswordEncoder passwordEncoder() {
return NoOpPasswordEncoder.getInstance();
}
```
My MyUserDetailsService which returns a simple User with Password
#Service
public class MyUserDetailsService implements UserDetailsService {
#Override
public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
return new User("foo","foo", new ArrayList<>());
The Dependencies I kept in maven pom file during initializing Spring Boot Project
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-rest</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-oauth2-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
The Package structure of my project:
proj_struct
After logging in using the username and password at the login form page generated by spring security Im getting the error:
javax.servlet.ServletException: Circular view path [hello]: would dispatch back to the current handler URL [/api/hello] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
I have not kept any static template (HTML/JSP) in the templates folder. I dont know if I have to as after login I just want to see a simple String. How do I resolve this?
I am trying to create a spring boot library with Custom annotation and Spring AOP. When I used this library with new spring boot application. Then Its not working. Even I am not getting any error.
Library Sample -
Custom Annotation
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
#Target(ElementType.METHOD)
#Retention(RetentionPolicy.RUNTIME)
public #interface HttpLogger {
}
Spring AOP class
#Aspect
class LoggingAspect {
#Around("#annotation(com.demo.commonlogging.aspect.HttpLogger)")
public Object inControllers(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
return loggingAdvice(proceedingJoinPoint); // Method for implementation
}
}
pom.xml
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
Using mvn clean install for creating library
Now new library is imported in springboot application.
And new Custom annotation is used in controllers
Controllers
#RestController
#RequestMapping(value = "/rest/test")
public class RestApiTestControllers {
#GetMapping
#HttpLogger
public String get(){
return "Hello !";
}
}
Please help here.
Seems like you are missing #Component from LoggingAspect also make call to proceed proceedingJoinPoint.proceed(); and return it's value.
So your code should look like:
#Aspect
#Component
class LoggingAspect {
#Around("#annotation(com.demo.commonlogging.aspect.HttpLogger)")
public Object inControllers(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
System.out.println("Before call");
Object returned = proceedingJoinPoint.proceed();
System.out.println("After call");
return returned;
}
}
Hope this helps!
First of all is it a viable thing to embed Activiti into an API type application for use within that application or should Activiti be run standalone?
The error below is due to bean definition but I'm not sure where the beans should be defined and how - if thats correct approach for version 6. Our standards with Springhboot 2 is to annotate beans in java rather than xml context
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-04-10 21:17:43.924 ERROR 19516 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field runtimeService in ma.cvmeeting.workflow.WorkflowApplication$MyrestController required a bean of type 'org.activiti.engine.RuntimeService' that could not be found.
The injection point has the following annotations:
- #org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'org.activiti.engine.RuntimeService' in your configuration.
Process finished with exit code 0
code:
import org.activiti.engine.RuntimeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#SpringBootApplication
public class WorkflowApplication {
public static void main(String[] args) {
SpringApplication.run(WorkflowApplication.class, args);
}
#RestController
public static class MyrestController{
#Autowired
private RuntimeService runtimeService;
#GetMapping("/start-process")
public String startProcess() {
runtimeService.startProcessInstanceByKey("Potulerauneoffre");
return "Process started. Number of currently running"
+ "process instances = "
+ runtimeService.createProcessInstanceQuery().count();
}
}
pom.xml:
<project>
<groupId>ma.cvmeeting</groupId>
<artifactId>workflow</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>workflow</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-engine</artifactId>
<version>7-201802-EA</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.h2database</groupId>
<artifactId>h2database</artifactId>
<version>1.0.20061217</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
There are two ways to initialize the engine when you embed it in your spring based application:
1.) let spring initialize it for you so you can use all the engine services right away without need of any configuration. this requires activiti-spring-boot-starter as dependency.
2.) You initialize engine by your self and provide the services beans from #Configuration class. for this you will require only activiti-engine core as dependency
The reason your application cannot find the RuntimeService because you are trying the second approach add the below dependency in your pom.xml and remove the engine one
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter</artifactId>
</dependency>
you should follow documentation for more help.
We recommend activiti 7 core if you are planning to use spring boot 2.x and the use of the new APIs. This is great time if you want to get involved with the new APIs and project initiatives
You could write a #Configuration class and define Activiti services, like this :
#Configuration
public class ActivityConfig {
#Autowired
DataSource dataSource;
#Bean
public DataSourceTransactionManager getTransactionManager() {
return new DataSourceTransactionManager(dataSource);
}
#Bean
public ProcessEngineConfigurationImpl getProcessEngineConfiguration() {
SpringProcessEngineConfiguration res = new SpringProcessEngineConfiguration();
res.setDataSource(dataSource);
res.setTransactionManager(getTransactionManager());
return res;
}
#Bean
public ProcessEngineFactoryBean getProcessEngine() {
ProcessEngineFactoryBean res = new ProcessEngineFactoryBean();
res.setProcessEngineConfiguration(getProcessEngineConfiguration());
return res;
}
#Bean
public RepositoryService getRepositoryService() throws Exception {
return getProcessEngine().getObject().getRepositoryService();
}
#Bean
public FormService getFormService() throws Exception {
return getProcessEngine().getObject().getFormService();
}
#Bean
public TaskService getTaskService() throws Exception {
return getProcessEngine().getObject().getTaskService();
}
#Bean
public RuntimeService getRuntimeService() throws Exception {
return getProcessEngine().getObject().getRuntimeService();
}
#Bean
public HistoryService getHistoryService() throws Exception {
return getProcessEngine().getObject().getHistoryService();
}
#Bean
public IdentityService getIdentityService() throws Exception {
return getProcessEngine().getObject().getIdentityService();
}
}
Got this while deploying the spring boot war on tomcat.
Anyone got this error
I have below steps :
Pom.xml :
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-tomcat
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
Main Class :
#SpringBootApplication
public class MainApp extends SpringBootServletInitializer{
#Override
protected SpringApplicationBuilder configure (SpringApplicationBuilder builder) {
return builder.sources(MainApp.class);
}
public static void main(String[] args) {
SpringApplication.run(MainApp.class, args);
}
}
I'm attempting to set up a simple REST web application that uses Jersey. In the documentation, it seems that I should be able to create my application without using a web.xml file. From the site:
JAX-RS provides a deployment agnostic abstract class Application for declaring root resource and provider classes, and root resource and provider singleton instances. A Web service may extend this class to declare root resource and provider classes.
The example that follows shows this code:
public class MyApplication extends Application {
#Override
public Set<Class<?>> getClasses() {
Set<Class<?>> s = new HashSet<Class<?>>();
s.add(HelloWorldResource.class);
return s;
}
}
To me, this says that I can use an Application class to do all of my servlet setup. This seems to be the configuration that reads my resource class's annotations and sets up the correct URL handling mechanisms. Is that correct? I don't have to do any other setup?
I ask because I created the following and it didn't work (I get a 404 from localhost:8080/{context}/test):
pom.xml:
<dependencies>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-core</artifactId>
<version>1.12</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-server</artifactId>
<version>1.12</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
<version>1.12</version>
</dependency>
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
Application class:
#ApplicationPath("/")
public class JerseyTestApp extends Application
{
#Override
public Set<Class<?>> getClasses()
{
final Set<Class<?>> classes = new HashSet<>();
classes.add(JerseyTestController.class);
return classes;
}
}
Resource class:
#Path("/test")
public class JerseyTestController
{
#GET
#Produces(MediaType.TEXT_PLAIN)
public String getTestMsg()
{
return "It works";
}
}
Dumb. All I had to do was include the jersey-servlet jar, as prescribed by this answer.