Test making an HTTP request to a URL using different Java HTTP libraries.
If no library is specified, Spring Framework RestTemplate is used. If no HTTP method is specified, HTTP GET is used.
The other libraries are:
| Library | Class |
|---|---|
| CommonsHttpClient | org.apache.commons.httpclient.HttpClient |
| HttpComponentsHttpClient | org.apache.http.client.HttpClient |
| SpringRestTemplate | org.springframework.web.client.RestTemplate |
See REST in Spring 3: RestTemplate for tutorial and examples.
Spring uses the HttpClient from Apache HttpComponents for the HTTP requests.
The Apache Commons HttpClient was widely used until a few years ago but has been deprecated and replaced by HttpComponents HttpClient.
Build with Maven.
mvn clean install
Produces an executable .jar file
/target/httptest.jar
java -jar httptest.jar
usage: java -jar httptest.jar URL [-a <header>] [-h] [-k <key>] [-l <library>] [-m
<method>] [-o <filename>] [-p] [-q] [-v]
Test an HTTP REST request using common Java HTTP libraries.
Options:
-a,--add-header <header> Add header(s). Add multiple headers with additional -a. Use
commas to separate multiple values in header. See examples.
-h,--help Show this help
-k,--key <key> Use Oauth/WSO2 consumer key (prompts for consumer secret)
-l,--library <library> JAVA library to use (default is SpringRestTemplate):
-CommonsHttpClient
-HttpComponentsHttpClient
-SpringRestTemplate
-m,--method <method> HTTP method GET, POST, PUT, DELETE (default is GET)
-o,--output <filename> Output file
-p,--pretty Pretty-print JSON response
-q,--quiet Don't display HTTP response body
-v,--verbose Show request/response details and processing messages
Examples:
java -jar httptest.jar https://byu.edu/clubs
java -jar httptest.jar https://byu.edu/clubs -m GET
java -jar httptest.jar https://byu.edu/clubs -l CommonsHttpClient
java -jar httptest.jar https://byu.edu/clubs -o myfile.txt -m GET
java -jar httptest.jar https://byu.edu/clubs -a Accept=text/html,application/xml
java -jar httptest.jar https://byu.edu/clubs -a Flavor=sweet -a Colors=red,green
java -jar httptest.jar https://byu.edu/clubs -k myConsumerKey -o results.json
Notes:
-Use commas to separate values in multi-valued header as shown in example.
-If no HTTP method is specified, HTTP GET is used.
-If no library is specified, SpringRestTemplate is used. The libraries are:
Library Class
------------------------ -------------------------------------------
CommonsHttpClient org.apache.commons.httpclient.HttpClient
HttpComponentsHttpClient org.apache.http.client.HttpClient
SpringRestTemplate org.springframework.web.client.RestTemplate
The Apache Commons HttpClient was widely used until a few years ago but it
has been deprecated and replaced by HttpComponents HttpClient.