如何用对象调用push方法

A. jpush推送java后台怎么调用

开发的时候需要引用appache的包commons-httpclient.jar 、commons-codec.jar、commons-logging.jar这些包可以到官网上下载，如果有需要的话也我也可以发给你。
引入上述这些包之后，就可以进行开发了。
这里需要特别说明的两点是：
1、通过 HttpClient client = new DefaultHttpClient(); 获得HttpClient对象不支持https，需要自己重写。
2、我们的MD5编码要和服务器那边的一样。（我用我自己写的MD5编码验证的时候，总是验证失败，后来跟他们的技术人员要了他们的md5的实现方式就通过验证了）

好了，废话不多说了，接下来是贴代码的时候了：
类MySSLSocketFactory用来实现对https的支持

[java] view plain
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.conn.ssl.SSLSocketFactory;

public class MySSLSocketFactory extends SSLSocketFactory {

SSLContext sslContext = SSLContext.getInstance("TLS");

public MySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
super(truststore);

TrustManager tm = new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}

public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}

public X509Certificate[] getAcceptedIssuers() {
return null;
}
};

sslContext.init(null, new TrustManager[] { tm }, null);
}

@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
}

@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}

}

类ClientUtil 获取可以支持https的HttpClient对象，调用MySSLSocketFactory 来取得

[java] view plain
import java.security.KeyStore;

import org.apache.http.HttpVersion;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;
public class ClientUtil {

public static HttpClient getNewHttpClient() {
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);

SSLSocketFactory sf = new MySSLSocketFactory(trustStore);
sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);

SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
registry.register(new Scheme("https", sf, 443));

ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);

return new DefaultHttpClient(ccm, params);
} catch (Exception e) {
e.printStackTrace();
return new DefaultHttpClient();
}
}

}

接下来就是调用JPush的api来推送消息了

[java] view plain
import java.util.ArrayList;
import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

/**
* 调用远程api实现推送
* @author naiyu
*
*/
public class PushMsgUtil {

// public static final String PUSH_URL = "https://api.jpush.cn:443/sendmsg/sendmsg";
public static final String PUSH_URL = "http://api.jpush.cn:8800/sendmsg/sendmsg";

public static void pushMsg(String msg) {
BasicNameValuePair name = new BasicNameValuePair("username", "test"); //用户名
BasicNameValuePair sendno = new BasicNameValuePair("sendno", "3621"); // 发送编号。由开发者自己维护，标识一次发送请求
BasicNameValuePair appkeys = new BasicNameValuePair("appkeys", "your appkeys"); // 待发送的应用程序(appKey)，只能填一个。
BasicNameValuePair receiver_type = new BasicNameValuePair("receiver_type", "4");
//验证串，用于校验发送的合法性。
BasicNameValuePair verification_code = new BasicNameValuePair("verification_code", getVerificationCode());
//发送消息的类型：1 通知 2 自定义
BasicNameValuePair msg_type = new BasicNameValuePair("msg_type", "1");
BasicNameValuePair msg_content = new BasicNameValuePair("msg_content", msg);
//目标用户终端手机的平台类型，如： android, ios 多个请使用逗号分隔。
BasicNameValuePair platform = new BasicNameValuePair("platform", "android");
List<BasicNameValuePair> datas = new ArrayList<BasicNameValuePair>();
datas.add(name);
datas.add(sendno);
datas.add(appkeys);
datas.add(receiver_type);
datas.add(verification_code);
datas.add(msg_type);
datas.add(msg_content);
datas.add(platform);
try {
HttpEntity entity = new UrlEncodedFormEntity(datas, "utf-8");
HttpPost post = new HttpPost(PUSH_URL);
post.setEntity(entity);
HttpClient client = ClientUtil.getNewHttpClient();
HttpResponse reponse = client.execute(post);
HttpEntity resEntity = reponse.getEntity();
System.out.println(EntityUtils.toString(resEntity));
} catch (Exception ex) {
ex.printStackTrace();
}

}

private static String getVerificationCode() {

String username = "test"; //username 是开发者Portal帐户的登录帐户名
String password = "pasword";
int sendno = 3621;
int receiverType = 4;
String md5Password = StringUtils.toMD5(password);; //password 是开发者Portal帐户的登录密码

String input = username + sendno + receiverType + md5Password;
String verificationCode = StringUtils.toMD5(input);
return verificationCode;
}

public static void main(String[] args) {
String msg = "{\"n_title\":\"来点外卖\",\"n_content\":\"你好\"}";
System.out.println(msg);
PushMsgUtil.pushMsg(msg);
}

}

B. js二维数组push的方法

1. $arr1 = array(1,2,3,4);

2. $arr2 = array(a,b,c,d,);

3. $arr3 = array_push($arr1,$arr2);

4. print_r($arr3);

5. array(1,2,3,4,a,b,c,d);

C. 请问在JS中如何在对象中用push添加一个新的属性然后遍历

var arr={a:1,b:2,c:3};

arr.d = 4;

// a: 1, b: 2, c: 3, d: 4
for(var i in arr) {
alert(i + ": " + arr[i]);
}

D. C++里的push_back函数对对象怎么操作

A a;
a.x = 5;
a.y = 6.0;
a.c = 'a';
a.d = 3.0;
vector<A> vec_a;
vec_a.push_back(a);
另外也可以用指针
A* pa = new A;
pa.x = 5;
pa.y = 6.0;
pa.c = 'a';
pa.d = 3.0;
vector<A*> vec_a;
vec_a.push_back(pa);
/*其他代码*/
/*注意释放指针，并避免重复释放*/
for (size_t i = 0; i < vec_a.size(); ++i)
{
delete vec_a[i];
vec_a[i] = NULL;
}

vec_a.clear()