JavaMail第三方库-sendCloud

java中对字符串进行拼接，然后加上模版的地址，拼接式请求参数。就会完成邮件的发送

package a_mailDemo;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.HashMap;import java.util.Map;import java.util.Set;import java.util.Map.Entry;public class Test3 {    public static void main(String[] args) throws IOException {        //适用java发送http请求        //先把请求参数放入map，方便后续的url编码，拼接等操作        Map<String, String> map = new HashMap<String,String>();        map.put("apiUser", "lzbhnr_test_CMyzxt");        map.put("apiKey", "Het0bnSv1fK34RLV");        map.put("from", "[e-mail]");        map.put("templateInvokeName", "test_template_active");        StringBuilder params = new StringBuilder();        Set<Entry<String, String>> entrySet = map.entrySet();        for(Entry<String,String> entry:entrySet){            String key = entry.getKey();            String value= entry.getValue();            params.append(key).append("=").append(value).append("&");        }        //删除最后多余的&        params.deleteCharAt(params.length()-1);        URL url = new URL("http://api.sendcloud.net/apiv2/mail/sendtemplate"); //发送模版邮件的        URLConnection conn = url.openConnection();//打开连接        conn.setDoOutput(true);//设置输出流为可用。post请求需要用到输出流        OutputStream output = conn.getOutputStream();        //把请求参数发送给sendcloud服务器，服务器收到请求以后，会向指定的收件人发送模版邮件        output.write(params.toString().getBytes());        //读取响应        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));        String line = null;        StringBuilder result = new StringBuilder();        while((line = reader.readLine())!=null){            result.append(line);        }        System.out.println(result);        output.close();        reader.close();    }}