JAVA 模拟post 表单提交
2024-06-03 14:42:57
一开始模拟http请求用的都是这个工具类
package com.bju.cms.common;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.http.HttpEntity;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
public class HttpUtils {/**
* 最大连接数
*/
private static final int MAX_CONN_TOTAL = 200;
/**
* 单个路由的最大连接数，默认是2
*/
private static final int MAX_CONN_PERROUTE = 20;
/**
* 默认超时时间，毫秒
*/
private static final int DEFAULT_TIMEOUT = 30000;
/**
* 默认编码
*/
private static final String DEFAULT_CHARSET = "UTF-8";
/**
* @param url
* @param paramters
* @param values
* @param timeout
* @return
* @throws Exception
*/
public static String post(String url, String[] paramters, String[] values, int timeout) throws Exception {CloseableHttpResponse response = null;
CloseableHttpClient client = null;
String result = "";
try {PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setDefaultMaxPerRoute(MAX_CONN_PERROUTE);
cm.setMaxTotal(MAX_CONN_TOTAL);
client = HttpClients.custom().setConnectionManager(cm).build();
List<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>();
for (int i = 0; i < paramters.length; i++) {params.add(new BasicNameValuePair(paramters[i], values[i]));
}HttpPost httppost = new HttpPost(url);
httppost.setEntity(new UrlEncodedFormEntity(params, Charset.forName(DEFAULT_CHARSET)));
// 设置请求超时，连接超时和数据传输超时
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeout).setConnectTimeout(timeout).setSocketTimeout(timeout).build();
httppost.setConfig(requestConfig);
response = client.execute(httppost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {HttpEntity responseEntity = response.getEntity();
result = EntityUtils.toString(responseEntity, DEFAULT_CHARSET);
} else {throw new RuntimeException("Response status:" + statusCode);
}} finally {if (response != null)response.close();
if (client != null)client.close();
}return result;
}/**
* 参数为json的post请求
* @param url
* @param jsonData
* @return
* @throws Exception
*/
public static String post(String url, String jsonData, int timeout) throws Exception {CloseableHttpResponse response = null;
CloseableHttpClient client = null;
String result = "";
try {PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setDefaultMaxPerRoute(MAX_CONN_PERROUTE);
cm.setMaxTotal(MAX_CONN_TOTAL);
client = HttpClients.custom().setConnectionManager(cm).build();
HttpPost httppost = new HttpPost(url);
HttpEntity requestEntity = new StringEntity(jsonData, Charset.forName(DEFAULT_CHARSET));
httppost.setEntity(requestEntity);
// 设置超时时间
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeout).setConnectTimeout(timeout).setSocketTimeout(timeout).build();
httppost.setConfig(requestConfig);
response = client.execute(httppost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {HttpEntity responseEntity = response.getEntity();
result = EntityUtils.toString(responseEntity, DEFAULT_CHARSET);
} else {throw new RuntimeException("Response status:" + statusCode);
}} finally {if (response != null)response.close();
if (client != null)client.close();
}return result;
}/**
* 通过header认证授权接口
* @param url
* @param authorization
* @param timeout
* @return
* @throws Exception
*/
public static String postByAuth(String url, String authorization, int timeout) throws Exception {CloseableHttpResponse response = null;
CloseableHttpClient client = null;
String result = "";
try {PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setDefaultMaxPerRoute(MAX_CONN_PERROUTE);
cm.setMaxTotal(MAX_CONN_TOTAL);
client = HttpClients.custom().setConnectionManager(cm).build();
HttpPost httppost = new HttpPost(url);
httppost.setHeader("Authorization", authorization);
// 设置超时时间
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(timeout).setConnectTimeout(timeout).setSocketTimeout(timeout).build();
httppost.setConfig(requestConfig);
response = client.execute(httppost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {HttpEntity responseEntity = response.getEntity();
result = EntityUtils.toString(responseEntity, DEFAULT_CHARSET);
} else {throw new RuntimeException("Response status:" + statusCode);
}} finally {if (response != null)response.close();
if (client != null)client.close();
}return result;
}/**
* 支持contentType的请求
* @param url
* @param data
* @return
* @throws Exception
*/
public static String post(String url, String data, String contentType) throws Exception {CloseableHttpResponse response = null;
CloseableHttpClient httpclient = null;
String result = "";
try {PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager();
cm.setDefaultMaxPerRoute(MAX_CONN_PERROUTE);
cm.setMaxTotal(MAX_CONN_TOTAL);
httpclient = HttpClients.custom().setConnectionManager(cm).build();
HttpPost httppost = new HttpPost(url);
// 设置参数
StringEntity reqEntity = new StringEntity(data);
reqEntity.setContentType(contentType);
// 设置超时时间
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(DEFAULT_TIMEOUT).setConnectTimeout(DEFAULT_TIMEOUT).setSocketTimeout(DEFAULT_TIMEOUT).build();
httppost.setConfig(requestConfig);
httppost.setEntity(reqEntity);
response = httpclient.execute(httppost);
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == HttpStatus.SC_OK) {HttpEntity responseEntity = response.getEntity();
result = EntityUtils.toString(responseEntity, DEFAULT_CHARSET);
} else {throw new RuntimeException("Response status:" + statusCode);
}} finally {if (response != null)response.close();
if (httpclient != null)httpclient.close();
}return result;
}/**
* 支持https请求
* @param url
* @param data
* @param contentType
* @return
* @throws Exception
*/
@SuppressWarnings("deprecation")public static String postByHttps(String url, String data, String contentType) throws Exception {HttpClient client = null;
PostMethod post = null;
try {client = new HttpClient();
post = new PostMethod(url);
post.setRequestHeader("Authorizatimon", "no-check-certificate");
post.setRequestHeader("Content-type", contentType);
StringRequestEntity requestEntity = new StringRequestEntity(data);
post.setRequestEntity(requestEntity);
client.setTimeout(DEFAULT_TIMEOUT);
client.setConnectionTimeout(DEFAULT_TIMEOUT);
int status = client.executeMethod(post);
if (status == HttpStatus.SC_OK) {return new String(post.getResponseBody(), DEFAULT_CHARSET);
} else {throw new RuntimeException("Response status:" + status);
}} finally {if (post != null)post.abort();
}}}
昨天模拟写一个post的表单提交 请求200 但是参数传不过去 后来在网上搜了很多 发现了另一种办法......
package com.bju.csair.common;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import java.io.IOException;
import java.util.List;
public class HttpU {public static String postWithParamsForString(String url, List<NameValuePair> params){HttpClient client = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
String s = "";
try {httpPost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));
httpPost.setHeader("Content-type", "application/x-www-form-urlencoded");
HttpResponse response = client.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
if(statusCode==200){HttpEntity entity = response.getEntity();
s = EntityUtils.toString(entity);
}} catch (IOException e) {e.printStackTrace();
}return s;
}
}
看到这个方法的时候突然想到原来好像是真的这么用过 用这个NameValuePair组装参数的
List<NameValuePair> params = new ArrayList<>();
NameValuePair jobGroup = new BasicNameValuePair("jobGroup", String.valueOf(pageListRequest.getJobGroup()));
NameValuePair start = new BasicNameValuePair("start", pageListRequest.getStart());
NameValuePair length = new BasicNameValuePair("length", pageListRequest.getLength());
NameValuePair jobDesc = new BasicNameValuePair("length", pageListRequest.getJobDesc());
NameValuePair executorHandler = new BasicNameValuePair("length", pageListRequest.getExecutorHandler());
params.add(jobGroup);
params.add(start);
params.add(length);
params.add(jobDesc);
params.add(executorHandler);
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