学习目标：
十分钟学会使用阿里云ocr识别、身份证信息、通用文字、等环境准备：
创建阿里云账户开通ocr服务配置appcode第一步：
购买对应服务：ocr服务链接
第二步:
导入依赖<dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.15</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.2.1</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpcore</artifactId><version>4.2.1</version></dependency><dependency><groupId>commons-lang</groupId><artifactId>commons-lang</artifactId><version>2.6</version></dependency><dependency><groupId>org.eclipse.jetty</groupId><artifactId>jetty-util</artifactId><version>9.3.7.v0115</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.5</version><scope>test</scope></dependency>
第三步：
工具类import java.io.UnsupportedEncodingException;import .URLEncoder;import java.security.KeyManagementException;import java.security.NoSuchAlgorithmException;import java.security.cert.X509Certificate;import java.util.ArrayList;import java.util.List;import java.util.Map;import .ssl.SSLContext;import .ssl.TrustManager;import .ssl.X509TrustManager;import mons.lang.StringUtils;import org.apache.http.HttpResponse;import org.apache.http.NameValuePair;import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpDelete;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpPut;import org.apache.http.conn.ClientConnectionManager;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.entity.ByteArrayEntity;import org.apache.http.entity.StringEntity;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.message.BasicNameValuePair;public class HttpUtils {/*** get** @param host* @param path* @param method* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doGet(String host, String path, String method,Map<String, String> headers,Map<String, String> querys)throws Exception {HttpClient httpClient = wrapClient(host);HttpGet request = new HttpGet(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}return httpClient.execute(request);}/*** post form** @param host* @param path* @param method* @param headers* @param querys* @param bodys* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,Map<String, String> bodys)throws Exception {HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}if (bodys != null) {List<NameValuePair> nameValuePairList = new ArrayList<NameValuePair>();for (String key : bodys.keySet()) {nameValuePairList.add(new BasicNameValuePair(key, bodys.get(key)));}UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(nameValuePairList, "utf-8");formEntity.setContentType("application/x-www-form-urlencoded; charset=UTF-8");request.setEntity(formEntity);}return httpClient.execute(request);}/*** Post String** @param host* @param path* @param method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}if (StringUtils.isNotBlank(body)) {request.setEntity(new StringEntity(body, "utf-8"));}return httpClient.execute(request);}/*** Post stream** @param host* @param path* @param method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPost(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPost request = new HttpPost(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}if (body != null) {request.setEntity(new ByteArrayEntity(body));}return httpClient.execute(request);}/*** Put String* @param host* @param path* @param method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,String body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}if (StringUtils.isNotBlank(body)) {request.setEntity(new StringEntity(body, "utf-8"));}return httpClient.execute(request);}/*** Put stream* @param host* @param path* @param method* @param headers* @param querys* @param body* @return* @throws Exception*/public static HttpResponse doPut(String host, String path, String method,Map<String, String> headers,Map<String, String> querys,byte[] body)throws Exception {HttpClient httpClient = wrapClient(host);HttpPut request = new HttpPut(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}if (body != null) {request.setEntity(new ByteArrayEntity(body));}return httpClient.execute(request);}/*** Delete** @param host* @param path* @param method* @param headers* @param querys* @return* @throws Exception*/public static HttpResponse doDelete(String host, String path, String method,Map<String, String> headers,Map<String, String> querys)throws Exception {HttpClient httpClient = wrapClient(host);HttpDelete request = new HttpDelete(buildUrl(host, path, querys));for (Map.Entry<String, String> e : headers.entrySet()) {request.addHeader(e.getKey(), e.getValue());}return httpClient.execute(request);}private static String buildUrl(String host, String path, Map<String, String> querys) throws UnsupportedEncodingException {StringBuilder sbUrl = new StringBuilder();sbUrl.append(host);if (!StringUtils.isBlank(path)) {sbUrl.append(path);}if (null != querys) {StringBuilder sbQuery = new StringBuilder();for (Map.Entry<String, String> query : querys.entrySet()) {if (0 < sbQuery.length()) {sbQuery.append("&");}if (StringUtils.isBlank(query.getKey()) && !StringUtils.isBlank(query.getValue())) {sbQuery.append(query.getValue());}if (!StringUtils.isBlank(query.getKey())) {sbQuery.append(query.getKey());if (!StringUtils.isBlank(query.getValue())) {sbQuery.append("=");sbQuery.append(URLEncoder.encode(query.getValue(), "utf-8"));}}}if (0 < sbQuery.length()) {sbUrl.append("?").append(sbQuery);}}return sbUrl.toString();}private static HttpClient wrapClient(String host) {HttpClient httpClient = new DefaultHttpClient();if (host.startsWith("https://")) {sslClient(httpClient);}return httpClient;}private static void sslClient(HttpClient httpClient) {try {SSLContext ctx = SSLContext.getInstance("TLS");X509TrustManager tm = new X509TrustManager() {public X509Certificate[] getAcceptedIssuers() {return null;}public void checkClientTrusted(X509Certificate[] xcs, String str) {}public void checkServerTrusted(X509Certificate[] xcs, String str) {}};ctx.init(null, new TrustManager[] {tm }, null);SSLSocketFactory ssf = new SSLSocketFactory(ctx);ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);ClientConnectionManager ccm = httpClient.getConnectionManager();SchemeRegistry registry = ccm.getSchemeRegistry();registry.register(new Scheme("https", 443, ssf));} catch (KeyManagementException ex) {throw new RuntimeException(ex);} catch (NoSuchAlgorithmException ex) {throw new RuntimeException(ex);}}}
第四步：
编写代码@RestController@Api(tags = "阿里云接口服务")public class AliyunController {@RequestMapping("/idCard")public R idCardOcr(@RequestBody Map<String,Object> map) {String host = "http://dm-51.";String path = "/rest/160601/ocr/ocr_idcard.json";String appcode = "你的appcode";String method = "POST";Map<String, String> headers = new HashMap<String, String>();//最后在header中的格式(中间是英文空格)为Authorization:APPCODE 83359fd73fe94948385f570e3c139105headers.put("Authorization", "APPCODE " + appcode);//根据API的要求，定义相对应的Content-Typeheaders.put("Content-Type", "application/json; charset=UTF-8");Map<String, String> querys = new HashMap<String, String>();// 对图像进行base64编码String imgBase64 = img_base64(map.get("filePath").toString());//configure配置JSONObject configObj = new JSONObject();configObj.put("side", "face");String config_str = configObj.toString();// 拼装请求body的json字符串JSONObject requestObj = new JSONObject();requestObj.put("image", imgBase64);if(configObj.size() > 0) {requestObj.put("configure", config_str);}String bodys = requestObj.toString();try {/*** 重要提示如下:* HttpUtils请从* /aliyun/api-gateway-demo-sign-java/blob/master/src/main/java/com/aliyun/api/gateway/demo/util/HttpUtils.java* 下载** 相应的依赖请参照* /aliyun/api-gateway-demo-sign-java/blob/master/pom.xml*/HttpResponse response = HttpUtils.doPost(host, path, method, headers, querys, bodys);int stat = response.getStatusLine().getStatusCode();if(stat != 200){System.out.println("Http code: " + stat);System.out.println("http header error msg: "+ response.getFirstHeader("X-Ca-Error-Message"));System.out.println("Http body error msg:" + EntityUtils.toString(response.getEntity()));return null;}String res = EntityUtils.toString(response.getEntity());JSONObject res_obj = JSON.parseObject(res);System.out.println(res_obj.toJSONString());} catch (Exception e) {e.printStackTrace();}return null;}}
img_base64方法
public static String img_base64(String path) {/*** 对path进行判断，如果是本地文件就二进制读取并base64编码，如果是url,则返回*/String imgBase64="";if (path.startsWith("http")){imgBase64 = path;}else {try {File file = new File(path);byte[] content = new byte[(int) file.length()];FileInputStream finputstream = new FileInputStream(file);finputstream.read(content);finputstream.close();imgBase64 = new String(Base64.encodeBase64(content));} catch (IOException e) {e.printStackTrace();return imgBase64;}}return imgBase64;}
第五步:
进行测试准备的身份证
我随便在找一找身份证图片，这里不方便放出来， 测试图片
使用postman测试
控制台打印结果
这样看的不清楚，我用json解析一下
可能会存在信息误差，最好用自己的身份证进行测试，
