springboot项目实现微信扫码支付

先到你的pom文件引入依赖

<dependency>
            <groupId>com.github.wxpay</groupId>
            <artifactId>wxpay-sdk</artifactId>
            <version>0.0.3</version>
        </dependency>

// 先添加一个发生http请求的工具类，直接复制我的即可。。

package util;

import org.apache.http.Consts;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.text.ParseException;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

/**
 * http请求客户端
 * 
 * @author JIN GANG
 * 
 */
public class HttpClient {
          
   
	private String url;
	private Map<String, String> param;
	private int statusCode;
	private String content;
	private String xmlParam;
	private boolean isHttps;

	public boolean isHttps() {
          
   
		return isHttps;
	}

	public void setHttps(boolean isHttps) {
          
   
		this.isHttps = isHttps;
	}

	public String getXmlParam() {
          
   
		return xmlParam;
	}

	public void setXmlParam(String xmlParam) {
          
   
		this.xmlParam = xmlParam;
	}

	public HttpClient(String url, Map<String, String> param) {
          
   
		this.url = url;
		this.param = param;
	}

	public HttpClient(String url) {
          
   
		this.url = url;
	}

	public void setParameter(Map<String, String> map) {
          
   
		param = map;
	}

	public void addParameter(String key, String value) {
          
   
		if (param == null)
			param = new HashMap<String, String>();
		param.put(key, value);
	}

	public void post() throws ClientProtocolException, IOException {
          
   
		HttpPost http = new HttpPost(url);
		setEntity(http);
		execute(http);
	}

	public void put() throws ClientProtocolException, IOException {
          
   
		HttpPut http = new HttpPut(url);
		setEntity(http);
		execute(http);
	}

	public void get() throws ClientProtocolException, IOException {
          
   
		if (param != null) {
          
   
			StringBuilder url = new StringBuilder(this.url);
			boolean isFirst = true;
			for (String key : param.keySet()) {
          
   
				if (isFirst)
					url.append("?");
				else
					url.append("&");
				url.append(key).append("=").append(param.get(key));
			}
			this.url = url.toString();
		}
		HttpGet http = new HttpGet(url);
		execute(http);
	}

	/**
	 * set http post,put param
	 */
	private void setEntity(HttpEntityEnclosingRequestBase http) {
          
   
		if (param != null) {
          
   
			List<NameValuePair> nvps = new LinkedList<NameValuePair>();
			for (String key : param.keySet())
				nvps.add(new BasicNameValuePair(key, param.get(key))); // 参数
			http.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8)); // 设置参数
		}
		if (xmlParam != null) {
          
   
			http.setEntity(new StringEntity(xmlParam, Consts.UTF_8));
		}
	}

	private void execute(HttpUriRequest http) throws ClientProtocolException,
			IOException {
          
   
		CloseableHttpClient httpClient = null;
		try {
          
   
			if (isHttps) {
          
   
				SSLContext sslContext = new SSLContextBuilder()
						.loadTrustMaterial(null, new TrustStrategy() {
          
   
							// 信任所有
							public boolean isTrusted(X509Certificate[] chain,
									String authType)
									throws CertificateException {
          
   
								return true;
							}
						}).build();
				SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
						sslContext);
				httpClient = HttpClients.custom().setSSLSocketFactory(sslsf)
						.build();
			} else {
          
   
				httpClient = HttpClients.createDefault();
			}
			CloseableHttpResponse response = httpClient.execute(http);
			try {
          
   
				if (response != null) {
          
   
					if (response.getStatusLine() != null)
						statusCode = response.getStatusLine().getStatusCode();
					HttpEntity entity = response.getEntity();
					// 响应内容
					content = EntityUtils.toString(entity, Consts.UTF_8);
				}
			} finally {
          
   
				response.close();
			}
		} catch (Exception e) {
          
   
			e.printStackTrace();
		} finally {
          
   
			httpClient.close();
		}
	}

	public int getStatusCode() {
          
   
		return statusCode;
	}

	public String getContent() throws ParseException, IOException {
          
   
		return content;
	}

}

然后创建一个支付的工具类

最后一步就是调用这个支付工具的方法了。。

// 调用方式很多，只要你传对参数就行了。
   @RequestMapping(value = "/createNative",method = RequestMethod.POST)
    public Result createNative(@RequestBody Map<String,String> map){
          
   
        String out_trade_no = String.valueOf(idWorker.nextId()); // 生成订单id
        String total_fee = map.get("total_fee"); // 前端传来总金额
        String good_id = map.get("good_id"); // 前端传来商品id
        MyWXPayUtil myWXPayUtil = new MyWXPayUtil();
        Map navite = myWXPayUtil.createNavite(out_trade_no, total_fee, good_id);
        return new Result(true,StatusCode.OK,"操作成功",navite);
    }