使用httpclient 调用selenium webdriver-白红宇

使用httpclient 调用selenium webdriver

阅读量：4958 次

发布时间：2019-06-12

本文共 7124 字，大约阅读时间需要 23 分钟。

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

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

                               
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

转载于:https://www.cnblogs.com/digod/p/6265068.html

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