本实例代码为Java实现本地验证码的识别

依赖库为 httpclient-4.2 使用最新的库 需要修改部分代码

Author: niostars@gmail.com

//构造一个httpclient

HttpClient client = new DefaultHttpClient();

HttpPost post = new HttpPost(URL);

//设置请求头   经过测试 如果需要传入参数 同时要上传文件 http头只能设置为如下代码 或者不予设置

//        post.addHeader("Accept", "*/*");

//        post.addHeader("Referer", "http://lab.ocrking.com");

//        post.addHeader("Accept-Encoding", "gzip");

//        post.addHeader("Accept-Language", "zh-cn,zh,en");

//        post.addHeader("Host", "lab.ocrking.com");

//        post.addHeader("Connection", "Keep-Alive");

//实例化一个MultipartEntity

MultipartEntity entity = new MultipartEntity();

try {

File file = new File("C:\\getcodeimage.jpg");

entity.addPart("url", new StringBody("","text/plain",Charset.forName("UTF-8")));

entity.addPart("service", new StringBody("OcrKingForCaptcha","text/plain",Charset.forName("UTF-8")));

entity.addPart("language", new StringBody("eng","text/plain",Charset.forName("UTF-8")));

entity.addPart("charset", new StringBody("7","text/plain",Charset.forName("UTF-8")));

entity.addPart("apiKey", new StringBody(apiKey,"text/plain",Charset.forName("UTF-8")));

entity.addPart("type", new StringBody(type,"text/plain",Charset.forName("UTF-8")));

/*addPart 建议使用上面的代码进行设置*/

//            entity.addPart("url", new StringBody(""));

//            entity.addPart("service", new StringBody("OcrKingForCaptcha"));

//            entity.addPart("language", new StringBody("eng"));

//            entity.addPart("charset", new StringBody("7"));

//            entity.addPart("apiKey", new StringBody(apiKey));

//            entity.addPart("type", new StringBody(type));

/*加入文件*/

entity.addPart("filename",new FileBody(file));

} catch (Exception e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

try {

post.setEntity(entity);

System.out.println("executing request="+post.getRequestLine());

HttpResponse response = client.execute(post);

System.out.println("code="+response.getStatusLine().getStatusCode());

System.out.println(EntityUtils.toString(response.getEntity()));

}