Error Geek

Solutions:  Solution 1 : You needed to change the packaging parameter to jar from pom. Also, the repositories , pluginRepositories , the maven-compiler-plugin and the spring-boot-maven-plugin's version and executions weren't needed. Solution 2:  Try mvn install and see if it works Solution 3: Preview: <properties> <!-- The main class to start by executing java -jar --> <start-class> com.mycorp.starter.HelloWorldApplication </start-class> </properties> Solution 4: Enable the main() method in your Application.java. Configure spring-boot-maven-plugin to specify the class with the main class (Spring should find it anyway if you have one, but good to be explicit): Preview: <plugin> <groupId> org.springframework.boot </groupId> <artifactId> spring-boot-maven-plugin </artifactId> <version> ${spring-boot-version} </version>...

Solutions : Same Problem occur with me once below are the steps i follow. Solution 1 : I went to project > properties > javaBuildPath. There In order of export , I moved up my java/main to the top priority. Solution 2 : Go  to run configurations: -  run->run configurations In the Classpath tab:  Select  Advanced Add where Eclipse usually put the *.class for the projects, which is in bin. So I added the bin directory for the project. Solution 3 : Project -> Clean Make sure Project -> Build automatically is active Project -> Properties -> Java Build Path -> Libraries: Remove any external libs you have ever added. Don't remove standard libraries like the JRE System Library. Try to run your main class now. The "class could not be found / load" error should be gone. Try adding your external libs/jars one after each other.

Problem Statements : Description Location Type The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files line 1 Java Problem The project was not built since its build path is incomplete. Cannot find the class file for java.lang.Object. Fix the build path then try building this project Unknown Java Problem The method myMethod(SomeClass) from the type MyOtherClass refers to the missing type (insert java type here: InputStream|File|Vector|IOException|etc) line 123 Java Problem Solutions :   Close the project and reopen it. Clean the project (It will rebuild the buildpath hence reconfiguring with the JDK libraries) OR Delete and Re-import the project and if necessary do the above steps again. The following steps could help: Right-click on project  » Properties » Java Build Path Select ...

You can't send a request body with an HTTP GET request. You should modify your call so that it only supports POST,  and POST your JSON to that endpoint. If you want to GET information about a bean, you should create a separate controller method that does that (and does not require a request body). Also, double-check your endpoint definitions  in the $.ajax call.

#Exclude start up of Hibernate JPA configuration Add below entry in your application.properties file spring.autoconfigure.exclude[0] = org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration

$http.get is a shortcut method for $http({ method: 'GET' }), and expects the URL as the first parameter. Solution: $http({ method: 'JSONP' , url: url }).then( function successCallback(response) { // ok }, function errorCallback(response) { // ko });

I m using this pretty tool for my blog to highlight the codes. Its colorful and also provide formatting of codes. Go to link : http://hilite.me/ So will see below window  1. Just copy paste your code in the source code window. 2. select your language. 3. select your style. 4. Choose line numbers if you want to show. 5. click on highlight button. Preview window will open with colorful text and formatted lines. This is easy to use and pretty cool.

Could not write content: No serializer found for class org.json.JSONObject and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS) ) controller methods return simple POJOs - Collection<Bookmark>, and Bookmark, etc.,  When an HTTP request comes in that specifies an Accept header, Spring MVC loops through the configured HttpMessageConverter until it finds one that can convert from the POJO domain model types into the content-type specified in the Accept header, if so configured. Spring Boot automatically wires up an HttpMessageConverter that can convert generic Object's to JSON, absent any more specific converter. HttpMessageConverter s work in both directions: incoming requests bodies are converted to Java objects, and Java objects are converted into HTTP response bodies. To solve Exception just override the default behaivour of the HttpMessageConverter provided by spring. @Bean publ...

A Simple DAO class extends JdbcDaoSupport, but, unable to inject or @autowired a “dataSource”, the method setDataSource is final, can’t override. Solution To quickly fix it, uses  @PostConstruct  to inject the  dataSource  like this : @Repository public class UserDetailsDaoImpl extends JdbcDaoSupport implements UserDetailsDao { @Autowired private DataSource dataSource ; @PostConstruct private void initialize ( ) { setDataSource ( dataSource ) ; } } Alternatively, create an own implementation of  JdbcDaoSupport  class, and do whatever you want. Dive inside the source code of  JdbcDaoSupport , it’s just a simple helper class to create a  jdbcTemplate . Source :-  https://www.mkyong.com/spring/how-to-autowire-datasource-in-jdbcdaosupport/

Put your SampleWebJspApplication.java in pl.test package and execute the application. It is recommended by Spring Boot to run your application from the root package and all your entities, controllers,DAO's and other service classes should be placed in child packages. This is not a hard and fast rule but it ensures all your subpackage annotated classes are scanned properly In your case your User class is not scanned and Hibernate is not able to find the mapping for the same and eventually throwing the QuerySyntaxException when executing the from User query. Currently Spring Boot will scan @Entity classes if they are placed in the same package or sub-packages where you specified the @SpringBootApplication annotation. Atleast, this is what I observed while developing spring boot apps lately. If you do not want to move the location of the  SampleApplication.java, then use  @EntityScan (basePackages = "pl.test.model" )  annotation and this will fix the issue. ...

Controllers are not initialize because you have not scan the packages for controller add these lines in your main class. If you are scanning a particular class for controller. @SpringBootApplication @ComponentScan (basePackageClasses = temInventoryController. class ) public class InventoryApp { if you want to scan a whole package for controller add this. @ComponentScan (basePackages = "com.home.controller" )

Not connecting to correct Database in oracle : jdbc:oracle:thin:@<server_host>:1521:<instance_name> the following commands will help: 1. Oracle query command to check the SID (or instance name): select sys_context('userenv','instance_name') from dual;  2. Oracle query command to check database name (or server host): select sys_context('userenv', 'server_host') from dual;

[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?  Go to Window → Preferences → Java → Installed JREs. And see if there is an entry pointing to your JDK path, and if not, click on Edit button and put the path you configured your JAVA_HOME environment

Error : Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.17 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.17 from/to central (https://repo.maven.apache.org/maven2): The operation was cancelled. pom.xml /LogReaderServer line 1 Maven Configuration Problem Solution : Remove all your failed downloads: For windows: cd %userprofile%\.m2\repository for /r %i in (*.lastUpdated) do del %i

I would like to suggest a solution of Dependency Injection which will be as much loyal as possible to the Spring IoC way and will help to overcome the circular dependency error. This means that we will have a single class that will have a reference to all the classes which need to be injected and will be responsible for the injection. I'll try to walk you through the steps. Assuming we have the following service classes which cause the circular error: @Service public class ServiceA{ @Autowire ServiceB serviceB; @Autowire ServiceC serviceC; } @Service public class ServiceB{ @Autowire ServiceA serviceA; @Autowire ServiceC serviceC; }                                               First step is to remove the @Autowire annotations, so we will move the wiring responsibility out of Spring hands. Second step is to create a class which will hold a reference to all the classe...