December 2016 - Roufid

Defining a proxy in Spring RestTemplate

Spring / Spring MVC
28 Dec, 2016
0

By default, RestTemplate don’t use a proxy to make the http calls and if you work in an environment that requires one, you will encounter the following exception :

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org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://roufid.com": Connection timed out: connect; nested exception is java.net.ConnectException: Connection timed out: connect

at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:633)

at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:588)

at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:295)

Caused by: java.net.ConnectException: Connection timed out: connect

at java.net.DualStackPlainSocketImpl.connect0(Native Method)

at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)

... 33 more

This tutorial will show two...

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Find Spring JPA repository domain type

Spring / Spring Data JPA
26 Dec, 2016
0

In a Spring Data JPA environment, you may want to retrieve the domain type of the repositories defined in your application. This tutorial will show two ways to retrieve Spring JPA repository domain type....

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Spring Boot hello world tutorial

Spring / Spring Boot
23 Dec, 2016
5

Spring Boot is one of the most powerful Java EE frameworks that aims to facilitate the development of new application. It brings all the power of the Spring stack (Spring dependency injection, Spring data...

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Load multiple configuration files from different directories with Spring Boot

Spring / Spring Boot
20 Dec, 2016
9

This tutorial will show how to load multiple configuration files from different directories with Spring Boot. By default, Spring Boot look for your externalized configuration file ( application.proroperties ) in four predetermined locations : in classpath...

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Filter and rename resources with Maven

Maven
17 Dec, 2016
0

If you want to filter and copy your project resources to the output directory, the Apache Maven Resources Plugin is the best plugin to perform that. But sometimes you want to filter and rename...

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Rename Spring Boot application.properties configuration file

Spring / Spring Boot
13 Dec, 2016
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By default, Spring Boot will look for your externalized properties in a file named application.properties located in one of the following folders : classpath root in the package /config in classpath in the current...

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5 ways to convert Inputstream to String in Java

Java
9 Dec, 2016
0

This tutorial shows 5 different ways to convert InputStream to String in Java.

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3 ways to call a stored procedure with Hibernate (JPA 2.1)

Hibernate
6 Dec, 2016
4

A new feature is provided in JPA 2.1 allowing a direct usage of stored procedures without using native query. This tutorial will show 3 different ways to call a database stored procedure with Hibernate. Used in...

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Spring Boot multiple databases configuration

Spring / Spring Boot
3 Dec, 2016
23

By simple configuration, Spring boot provides a powerful way to work with a single database. Sometimes you need to work with multiple databases (for example, one for basic usage and another for archiving). In...

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Monthly Archive: December 2016

Defining a proxy in Spring RestTemplate

Find Spring JPA repository domain type

Spring Boot hello world tutorial

Load multiple configuration files from different directories with Spring Boot

Filter and rename resources with Maven

Rename Spring Boot application.properties configuration file

5 ways to convert Inputstream to String in Java

3 ways to call a stored procedure with Hibernate (JPA 2.1)

Spring Boot multiple databases configuration

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