1.封装微信模板消息类： 

public class WxTemplate {
private String template_id;
private String touser;
private String url;
private String topcolor;
private Map<String,TemplateData> data;

public String getTemplate_id() {
return template_id;
}
public void setTemplate_id(String template_id) {
this.template_id = template_id;
}
public String getTouser() {
return touser;
}
public void setTouser(String touser) {
this.touser = touser;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getTopcolor() {
return topcolor;
}
public void setTopcolor(String topcolor) {
this.topcolor = topcolor;
}
public Map<String,TemplateData> getData() {
return data;
}
public void setData(Map<String,TemplateData> data) {
this.data = data;
}
}

2.封装模板数据 

public class TemplateData {
private String value;
private String color;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
}

3.填充模板消息数据 

WxTemplate t = new WxTemplate();
t.setUrl("");
t.setTouser(open_id));
t.setTopcolor("#000000");
t.setTemplate_id(模板ID);
Map<String,TemplateData> m = new HashMap<String,TemplateData>();
TemplateData first = new TemplateData();
first.setColor("#000000");
first.setValue("***标题***");
m.put("first", first);
TemplateData name = new TemplateData();
name.setColor("#000000");
name.setValue("***名称***");
m.put("name", name);
TemplateData remark = new TemplateData();
remark.setColor("blue");
remark.setValue("***备注说明***");
m.put("Remark", remark);
t.setData(m);

4.使用JSONObject将类转化成JSON格式 

JSONObject.fromObject(template).toString()); //此处你应该代入自己的template

5.调用发送接口：

public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {
JSONObject jsonObject = null;
StringBuffer buffer = new StringBuffer();
try {
// 创建SSLContext对象，并使用我们指定的信任管理器初始化
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();

URL url = new URL(requestUrl);
HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
httpUrlConn.setSSLSocketFactory(ssf);

httpUrlConn.setDoOutput(true);
httpUrlConn.setDoInput(true);
httpUrlConn.setUseCaches(false);
// 设置请求方式（GET/POST）
httpUrlConn.setRequestMethod(requestMethod);

if ("GET".equalsIgnoreCase(requestMethod))
httpUrlConn.connect();

// 当有数据需要提交时
if (null != outputStr) {
OutputStream outputStream = httpUrlConn.getOutputStream();
// 注意编码格式，防止中文乱码
outputStream.write(outputStr.getBytes("UTF-8"));
outputStream.close();
}

// 将返回的输入流转换成字符串
InputStream inputStream = httpUrlConn.getInputStream();
InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

String str = null;
while ((str = bufferedReader.readLine()) != null) {
buffer.append(str);
}
bufferedReader.close();
inputStreamReader.close();
// 释放资源
inputStream.close();
inputStream = null;
httpUrlConn.disconnect();
jsonObject = JSONObject.fromObject(buffer.toString());
} catch (ConnectException ce) {
ce.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return jsonObject;
}