For devlopment I am using Intellij IDE. I found “File and Code Templates” and “Live Templates” very useful, It is beneficial while doing day-to-day development. It saves some time and be more productive. github link: https://github.com/purab/IntelliJ-IDEA-File-Templates Mostly we work on Rest APIs. So I created the following File Templates Spring ControllerSpring EntitySpring RepositorySpring ServiceSpring Static …
Tag Archives: java
intellij configure tomcat server
For configure tomcat in intellij IDE you need to download tomcat server from following URL https://tomcat.apache.org/download-90.cgi Install Smart Tomcat plugin to intellij IDE smart tomcat plugin Go to edit configurations section and configure your project. Steps are given in this video https://www.youtube.com/watch?v=2C8RGyC-dlY tomcat serer
Solved: intellij java: package javax.servlet.http does not exist
While running java web project I got following error. java: package javax.servlet does not exist Two solve you need to add javax.servlet-3.0.jar file in your project or ide while executing code you can download jar from this URL: http://www.java2s.com/Code/Jar/j/Downloadjavaxservlet30jar.htm Solution: File -> Project Structure->Libraries and add javax.servlet-3.0.jar library Detail can found in this video https://www.youtube.com/watch?v=kOrpI-3YHVY …
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java mariadb executeQuery right syntax to use near ‘? mapping exception
I was using following code String sql = “select * from user where username=? and password=?”;PreparedStatement ps =connection.prepareStatement(sql);ps.setString(1, username);ps.setString(2, password);ResultSet rs=ps.executeQuery(sql);while (rs.next()) {user= new User();user.setId(rs.getInt(1));user.setName(rs.getString(2));user.setEmail(rs.getString(3));user.setQualification(rs.getString(5));user.setRole(rs.getString(6));} I got following eror: java.sql.SQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near …
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SSL certificate integration in Spring boot Project
SSL certificate integration SSL certificate setting applied in application.properties file To generate self signed SSL certificate use following command: cd src/main/resources keytool -genkeypair -alias local_ssl -keyalg RSA -keysize 2048 -storetype PKCS12 -keystore local-ssl.p12 -validity 365 -ext san=dns:localhost Put following code into application.properties file spring.application.name=ssl-certificate server.port=8443 #server.port=8080 server.ssl.enabled: true server.ssl.key-alias: local_ssl server.ssl.key-store: classpath:local-ssl.p12 server.ssl.key-store-type: PKCS12 server.ssl.key-password: …
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Solved Error executing DDL “alter table events drop foreign key
While running spring boot application I got following error 2021-10-22 13:38:59.732[0;39m [33m WARN[0;39m [35m700[0;39m [2m—[0;39m [2m[ restartedMain][0;39m [36mo.h.t.s.i.ExceptionHandlerLoggedImpl [0;39m [2m:[0;39m GenerationTarget encountered exception accepting command : Error executing DDL “alter table users_roles add constraint FKt4v0rrweyk393bdgt107vdx0x foreign key (role_id) references role (id)” via JDBC Statement org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL “alter table users_roles add constraint FKt4v0rrweyk393bdgt107vdx0x foreign …
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Spring and Gradle – adding to the project WebJars Bootstrap
If you wanted to add bootstrap UI CSS and JS files in thymeleaf then you can use following code: <link th:href=”@{/webjars/bootstrap/5.0.0/css/bootstrap.min.css}” rel=”stylesheet” media=”screen” /><script th:src=”@{/webjars/bootstrap/5.0.0/js/bootstrap.min.js}”></script> If those styles are still not loading then refresh project and if you are using spring security then you need to add following code in your extended class of WebSecurityConfigurerAdapter …
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windows 10 kill port 8080
When I tried to start spring boot application I got the following error Web server failed to start. Port 8080 was already in use. Action: Identify and stop the process that’s listening on port 8080 or configure this application to listen on another port. Solution: I executed following commands for kill 8080 port >netstat -ano …
java error invalid source release 15 in intellij Idea Solved error
While the spring boot project was running project in IntelliJ idea I got the following error: language level is invalid or missing in pom.xml. current project jdk is 15 and this also; java error invalid source release 15 This issue will occur when you have two or more java versions installed in machine. I did …
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blocked cors localhost:3000 springboot issue
I tried to fetch localhost:8080 spring-boot application and I got the following error in the console. Access to XMLHttpRequest at ‘http://localhost:8080/’ from origin ‘http://localhost:3000’ has been blocked by CORS policy: I did the following changes in SpringSecurityConfig class file: @Override protected void configure(HttpSecurity http) throws Exception { http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and().exceptionHandling() .authenticationEntryPoint(restAuthEntry).and() .authorizeRequests((request) -> request.antMatchers(“/api/v1/auth/login”).permitAll() .antMatchers(HttpMethod.OPTIONS, “/**”).permitAll()) .addFilterBefore(new …
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