小程序中如何接入人脸融合功能

小程序人脸融合功能是一个什么样的样式效果，小程序接入人脸融合功能需要如何开发，下面为大家解答。

效果图

创建一个AI应用

https://ai.qq.com/cgi-bin/console_overview 登录腾讯AI，创建并勾选相关接口即可。

记得复制APPID APPKEY

使用Java接入该功能

创建一个SpringMVC工程，包含上传相关jar。或者SpringBoot工程也行。鄙人后端还在完善并没有完全开源。具体可以参考https://gitee.com/xshuai/xai 项目

Java调用腾讯AI接口。小帅丶已经封装成SDK。也是开源的 https://gitee.com/xshuai/taip 

如果使用maven搭建。直接pom引入即可哦

<!-- https://mvnrepository.com/artifact/cn.xsshome/taip -->
<dependency>
    <groupId>cn.xsshome</groupId>
    <artifactId>taip</artifactId>
    <version>4.2.1</version>
</dependency>

• FaceMergeController（后端处理代码）

import java.util.Iterator;
import org.apache.log4j.Logger;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import cn.xsshome.taip.ptu.TAipPtu;
/**
* 人脸融合接口
* url:http://www.xxx.com/facemerge/uploadFM
*/
@Controller
@RequestMapping(value="/facemerge")
@Scope("prototype")
public class FaceMergeController extends BaseController{
	private static final Logger logger = Logger.getLogger(FaceMergeController.class);
	/**
	 * 人脸融合
	 * @throws Exception
	 */
	@RequestMapping(value="/uploadFM",method=RequestMethod.POST)
	public void UploadBDANIMAL()throws Exception{
		TAipPtu aipPtu = new TAipPtu("APPID", "APPKEY");
		String model = request.getParameter("model");
		logger.info("model的值是===="+model);
		String model = request.getParameter("model");
		logger.info("model的值是===="+model);
		    String result = "";
		    MultipartHttpServletRequest mpRequest = (MultipartHttpServletRequest)this.request;
		    Iterator iter = mpRequest.getFileNames();
		    MultipartFile file = null;
		    while (iter.hasNext()) {
		      file = mpRequest.getFile((String)iter.next());
		      if ((file != null) && (file.getSize() != 0L)){
		        byte[] image = file.getBytes();
		        String apiPtuResult = aipPtu.faceMerge(image,Integer.parseInt(model));
		        PrintUtil.printJson(this.response, apiPtuResult);
		      } else {
		        logger.error("请检查上传文件是否正确");
		        result = "{\"result\", \"FAIL\",\"msg\":\"服务器开小差了\"}";
		        PrintUtil.printJson(this.response, result);
		      }
		    }
		}
}

• BaseController(基类)

import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.bind.annotation.ModelAttribute;
/**
 * 基类Controller 
 * 一些参数
 * Title: BaseController	
 * @author 小帅丶
 * @version 1.0
 */
public class BaseController {
	public Map session;
	public String openId;
	public String errMsg;
	public String jsonParam;
	public String callback;
	protected HttpServletRequest request;
	protected HttpServletResponse response;
	/**
	 * 每次请求都会带上
	 * @param jsonParam
	 * @param callback
	 * @param openId
	 */
	@ModelAttribute
	public void setReqAndRes(Map session, String openId, String errMsg,
			String jsonParam, String callback, HttpServletRequest request,
			HttpServletResponse response) {
		this.session = session;
		this.openId = openId;
		this.errMsg = errMsg;
		this.jsonParam = jsonParam;
		this.callback = callback;
		this.request = request;
		this.response = response;
	}
	public Map getSession() {
		return session;
	}
	public void setSession(Map session) {
		this.session = session;
	}
	public String getOpenId() {
		return openId;
	}
	public void setOpenId(String openId) {
		this.openId = openId;
	}
	public String getErrMsg() {
		return errMsg;
	}
	public void setErrMsg(String errMsg) {
		this.errMsg = errMsg;
	}
	public String getJsonParam() {
		return jsonParam;
	}
	public void setJsonParam(String jsonParam) {
		this.jsonParam = jsonParam;
	}
	public String getCallback() {
		return callback;
	}
	public void setCallback(String callback) {
		this.callback = callback;
	}
	public HttpServletRequest getRequest() {
		return request;
	}
	public void setRequest(HttpServletRequest request) {
		this.request = request;
	}
	public HttpServletResponse getResponse() {
		return response;
	}
	public void setResponse(HttpServletResponse response) {
		this.response = response;
	}
	
	public String getRealPath(String path) {
		return request.getSession().getServletContext().getRealPath(path);

	}
}

• PrintUtil(响应类)

import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import javax.servlet.http.HttpServletResponse;
/**
 * 输出结果
 * @author 小帅丶
 *
 */
public class PrintUtil {
	public static void printXml(HttpServletResponse response,String result){
		try {
			response.setContentType("text/xml; charset=UTF-8");  
			PrintWriter sos = response.getWriter();
			sos.write(result);
			sos.flush();
			sos.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	/**
	 * 采用json 或 jsonp
	 * @param callback
	 * @param response
	 * @param result
	 */
	public static void printJson(String callback,HttpServletResponse response,String result){
		boolean jsonP = false;
		if (callback != null) {
		    jsonP = true;
		    response.setContentType("text/javascript;charset=utf-8");
		} else {
		    response.setContentType("application/x-json;charset=utf-8");
		}
		
			try {
				Writer out = response.getWriter();
				if (jsonP) {
				    out.write(callback + "(");
				}
				out.write(result.toString());
				if (jsonP) {
				    out.write(");");
				}
				out.flush();
				out.close();
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
			
	}
	
	public static void printJson(HttpServletResponse response,String result){
		try {
			response.setCharacterEncoding("UTF-8");  
		    response.setContentType("application/json; charset=utf-8");  
			PrintWriter sos = response.getWriter();
			sos.write(result);
			sos.flush();
			sos.close();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

  微信小程序上传限制为2048kb。相关图片过多超了限制。因此需要用到云存储。使用阿里云 腾讯云都可以哦。在亲测的情况下发现。即使云储存域名不在小程序里面添加也是可以正常访问哦