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Added spring-rest-template

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micropatel 2018-07-17 23:00:02 -03:00
parent 5d7b57c468
commit 67cf33a91b
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*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
*/.idea/*
# Packaged files #
*.jar
*.war
*.ear

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## Spring REST Templat Example Project
### The Course
The "REST With Spring" Classes: http://bit.ly/restwithspring
### Relevant Articles:
- [Spring @RequestMapping](http://www.baeldung.com/spring-requestmapping)
- [Http Message Converters with the Spring Framework](http://www.baeldung.com/spring-httpmessageconverter-rest)
- [Redirect in Spring](http://www.baeldung.com/spring-redirect-and-forward)
- [Returning Custom Status Codes from Spring Controllers](http://www.baeldung.com/spring-mvc-controller-custom-http-status-code)
- [A Guide to OkHttp](http://www.baeldung.com/guide-to-okhttp)
- [Binary Data Formats in a Spring REST API](http://www.baeldung.com/spring-rest-api-with-binary-data-formats)
- [Guide to UriComponentsBuilder in Spring](http://www.baeldung.com/spring-uricomponentsbuilder)
- [Introduction to FindBugs](http://www.baeldung.com/intro-to-findbugs)
- [A Custom Media Type for a Spring REST API](http://www.baeldung.com/spring-rest-custom-media-type)
- [HTTP PUT vs HTTP PATCH in a REST API](http://www.baeldung.com/http-put-patch-difference-spring)
- [Exploring the Spring Boot TestRestTemplate](http://www.baeldung.com/spring-boot-testresttemplate)
- [Spring – Log Incoming Requests](http://www.baeldung.com/spring-http-logging)
- [RequestBody and ResponseBody Annotations](http://www.baeldung.com/requestbody-and-responsebody-annotations)
- [Introduction to CheckStyle](http://www.baeldung.com/checkstyle-java)
- [How to Change the Default Port in Spring Boot](http://www.baeldung.com/spring-boot-change-port)
- [Guide to DeferredResult in Spring](http://www.baeldung.com/spring-deferred-result)
- [Spring Custom Property Editor](http://www.baeldung.com/spring-mvc-custom-property-editor)
- [Using the Spring RestTemplate Interceptor](http://www.baeldung.com/spring-rest-template-interceptor)
- [Configure a RestTemplate with RestTemplateBuilder](http://www.baeldung.com/spring-rest-template-builder)

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spring-rest-template/checkstyle.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC
"-//Puppy Crawl//DTD Check Configuration 1.3//EN"
"http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="TreeWalker">
<module name="AvoidStarImport">
<property name="severity" value="warning" />
</module>
</module>
</module>

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spring-rest-template/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>
<artifactId>spring-rest-template</artifactId>
<version>0.1-SNAPSHOT</version>
<name>spring-rest-template</name>
<packaging>jar</packaging>
<parent>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<finalName>spring-rest-template</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>${checkstyle-maven-plugin.version}</version>
<configuration>
<configLocation>checkstyle.xml</configLocation>
</configuration>
<executions>
<execution>
<goals>
<goal>check</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<forkCount>3</forkCount>
<reuseForks>true</reuseForks>
<excludes>
<exclude>**/*IntegrationTest.java</exclude>
<exclude>**/*LongRunningUnitTest.java</exclude>
<exclude>**/*ManualTest.java</exclude>
<exclude>**/*LiveTest.java</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<reporting>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<version>${checkstyle-maven-plugin.version}</version>
<configuration>
<configLocation>checkstyle.xml</configLocation>
</configuration>
</plugin>
</plugins>
</reporting>
<properties>
<!-- Maven plugins -->
<checkstyle-maven-plugin.version>3.0.0</checkstyle-maven-plugin.version>
</properties>
</project>

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spring-rest-template/src/main/java/com/baeldung/web/upload/client/MultipartFileUploadClient.java Normal file
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package com.baeldung.web.upload.client;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.RestTemplate;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
public class MultipartFileUploadClient {
public static void main(String[] args) throws IOException {
uploadSingleFile();
uploadMultipleFile();
}
private static void uploadSingleFile() throws IOException {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
body.add("file", getTestFile());
HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, headers);
String serverUrl = "http://localhost:8082/spring-rest/fileserver/singlefileupload/";
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.postForEntity(serverUrl, requestEntity, String.class);
System.out.println("Response code: " + response.getStatusCode());
}
private static void uploadMultipleFile() throws IOException {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.MULTIPART_FORM_DATA);
MultiValueMap<String, Object> body = new LinkedMultiValueMap<>();
body.add("files", getTestFile());
body.add("files", getTestFile());
body.add("files", getTestFile());
HttpEntity<MultiValueMap<String, Object>> requestEntity = new HttpEntity<>(body, headers);
String serverUrl = "http://localhost:8082/spring-rest/fileserver/multiplefileupload/";
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.postForEntity(serverUrl, requestEntity, String.class);
System.out.println("Response code: " + response.getStatusCode());
}
public static Resource getTestFile() throws IOException {
Path testFile = Files.createTempFile("test-file", ".txt");
System.out.println("Creating and Uploading Test File: " + testFile);
Files.write(testFile, "Hello World !!, This is a test file.".getBytes());
return new FileSystemResource(testFile.toFile());
}
}