使用httpclient 调用selenium webdriver
Posted 呆瓜小贼66
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转自：http://www.cnblogs.com/tobecrazy/p/5034408.html
结合上次研究的selenium webdriver potocol ，自己写http request调用remote driver代替selenium API
selenium web driver Json protocol 相关请看 http://www.cnblogs.com/tobecrazy/p/5020741.html
我这里使用的是Gson 和 httpclient
首先，起一个remote sever
java -Dwebdriver.ie.driver="IEDriverServer.exe" -Dwebdriver.chrome.driver="chromedriver.exe" -jar selenium-server-standalone-2.48.0.jar
这里要用到httpclient的Post 和delete method
创建一个httpclient对象
HttpClient httpClient = HttpClients.createDefault();
创建一个post请求
JsonObject setCapability = new JsonObject();
setCapability.addProperty("browserName","firefox");
JsonObject capability = new JsonObject();
capability.add("desiredCapabilities",setCapability);
HttpPost httpPost = new HttpPost(base);
创建一个delete 请求
url = base + sessionId ;
HttpDelete httpDelete = new HttpDelete(url);
从respose 中获取session ID
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HttpResponse response = httpClient.execute(httpPost); try { HttpEntity entity = response.getEntity(); if (entity != null) { System.out.println("Response content length: " + entity.getContentLength()); String resultEntity = EntityUtils.toString(entity); System.out.println("Response content: " + resultEntity); JsonObject result= new JsonParser().parse(resultEntity).getAsJsonObject(); JsonElement sessionIdJson = result.get("sessionId"); if(!sessionIdJson.isJsonNull()) sessionId =sessionIdJson.getAsString(); JsonElement valueJson = result.get("value"); if(!valueJson.isJsonNull()) { JsonObject tm=valueJson.getAsJsonObject(); JsonElement elementIdJson = tm.get("ELEMENT"); if(elementIdJson!=null) elementId=elementIdJson.getAsString(); } } } finally { ((Closeable) response).close(); } |
全部代码如下：
import java.io.Closeable;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
public class webDriverJson {
private static String base = "http://127.0.0.1:4444/wd/hub/session/";
private static String elementId;
static String sessionId = "";
public static void main(String[] args) throws Exception, IOException {
HttpClient httpClient = HttpClients.createDefault();
JsonObject setCapability = new JsonObject();
setCapability.addProperty("browserName","firefox");
JsonObject capability = new JsonObject();
capability.add("desiredCapabilities",setCapability);
HttpPost httpPost = new HttpPost(base);
//create session
postExecutor(httpClient, httpPost, capability);
String url = base + sessionId + "/url";
httpPost = new HttpPost(url);
JsonObject getUrl = new JsonObject();
getUrl.addProperty("url", "http://www.baidu.com");
postExecutor(httpClient, httpPost, getUrl);
//find input box
url = base + sessionId + "/element";
httpPost = new HttpPost(url);
JsonObject findElement = new JsonObject();
findElement.addProperty("using", "id");
findElement.addProperty("value", "kw");
postExecutor(httpClient, httpPost, findElement);
System.out.println(elementId);
url = base + sessionId + "/element/"+elementId+"/value";
httpPost = new HttpPost(url);
JsonObject typeElement = new JsonObject();
String json = "{\\"value\\":[\\"webdriver\\"]}";
JsonParser jp = new JsonParser();
typeElement = (JsonObject) jp.parse(json);
postExecutor(httpClient, httpPost, typeElement);
//find search button
url = base + sessionId + "/element";
httpPost = new HttpPost(url);
JsonObject findSearchButton = new JsonObject();
findSearchButton.addProperty("using", "id");
findSearchButton.addProperty("value", "su");
postExecutor(httpClient, httpPost, findSearchButton);
System.out.println(elementId);
url = base + sessionId + "/element/"+elementId+"/click";
httpPost = new HttpPost(url);
postExecutor(httpClient, httpPost,null);
//delete session
url = base + sessionId ;
HttpDelete httpDelete = new HttpDelete(url);
deleteExecutor(httpClient, httpDelete);
}
/**
* @author Young
* @param httpClient
* @param httpPost
* @param jo
* @throws UnsupportedEncodingException
* @throws IOException
* @throws ClientProtocolException
*/
public static void postExecutor(HttpClient httpClient, HttpPost httpPost,
JsonObject jo) throws UnsupportedEncodingException, IOException,
ClientProtocolException {
if(jo!=null)
{
StringEntity input = new StringEntity(jo.toString());
input.setContentEncoding("UTF-8");
input.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,
"application/json"));
httpPost.setEntity(input);
}
HttpResponse response = httpClient.execute(httpPost);
try {
HttpEntity entity = response.getEntity();
if (entity != null) {
System.out.println("Response content length: "
+ entity.getContentLength());
String resultEntity = EntityUtils.toString(entity);
System.out.println("Response content: " + resultEntity);
JsonObject result= new JsonParser().parse(resultEntity).getAsJsonObject();
JsonElement sessionIdJson = result.get("sessionId");
if(!sessionIdJson.isJsonNull())
sessionId =sessionIdJson.getAsString();
JsonElement valueJson = result.get("value");
if(!valueJson.isJsonNull())
{
JsonObject tm=valueJson.getAsJsonObject();
JsonElement elementIdJson = tm.get("ELEMENT");
if(elementIdJson!=null)
elementId=elementIdJson.getAsString();
}
}
} finally {
((Closeable) response).close();
}
}
/**
* @author Young
* @param httpClient
* @param delete
* @throws UnsupportedEncodingException
* @throws IOException
* @throws ClientProtocolException
*/
public static void deleteExecutor(HttpClient httpClient, HttpDelete delete) throws UnsupportedEncodingException, IOException,
ClientProtocolException {
HttpResponse response = httpClient.execute(delete);
try {
HttpEntity entity = response.getEntity();
if (entity != null) {
System.out.println("Response content length: "
+ entity.getContentLength());
String resultEntity = EntityUtils.toString(entity);
System.out.println("Response content: " + resultEntity);
JsonObject result= new JsonParser().parse(resultEntity).getAsJsonObject();
JsonElement sessionIdJson = result.get("sessionId");
if(!sessionIdJson.isJsonNull())
sessionId =sessionIdJson.getAsString();
JsonElement valueJson = result.get("value");
if(!valueJson.isJsonNull())
{
JsonObject tm=valueJson.getAsJsonObject();
JsonElement elementIdJson = tm.get("ELEMENT");
if(elementIdJson!=null)
elementId=elementIdJson.getAsString();
}
}
} finally {
((Closeable) response).close();
}
}
}
运行效果：
了解selenium 原理究竟有什么意义？
大多数人都会使用selenium去做自动化，但是不是每个人都了解selenium的原理，如果能掌握selenium原理
可以改造selenium API，使用webdriver protocol去做一些能够完善自动化测试框架的事情。、
比如，也许你在selenium自动化过程中会遇到get打开页面打不开，为了保证你脚本的健壮性，这时候你可以加入一段httprequest去获取
response的的关键值判断，如果不是2开头的可以设置refresh，再比如需要做一些准备性工作，比如环境配置也可以使用
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