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百度提供了免费的文本内容审核 响应时间在1秒左右

第一步：在百度开发账号中创建应用，获取配置信息

/**
 * 百度图片审核配置信息
 */
public class BaiduSensitiveConfig {
    /**
     * 1.app id
     */
    public static final String APP_ID = "";
    /**
     * 2.api key
     */
    public static final String API_KEY = "";
    /**
     * 3.secret key
     */
    public static final String SECRET_KEY = "";
    /**
     * 4.文字认证接口
     */
    public static final String WORD_URL="https://aip.baidubce.com/rest/2.0/antispam/v2/spam";

}

第二部创建应用对象 采用单例模式

	   /**
 * 实例化百度处理客户端
 */
private static class SingletonHolder{
    private final static AipContentCensor instance= new AipContentCensor(BaiduSensitiveConfig.APP_ID, BaiduSensitiveConfig.API_KEY, BaiduSensitiveConfig.SECRET_KEY);
}
public static AipContentCensor getClientInstance(){
    return SingletonHolder.instance;
}

第三步

/** 
 *  敏感词过滤 工具类
 */  
public class BaiduSensitiveWord {
	//调用两种方式对比速度
    public static void main(String[] args) {
        String content = "asdfv";
        DecimalFormat df=new DecimalFormat("0.00");
        long start= System.currentTimeMillis();
        System.out.println(check(content));
        long end = System.currentTimeMillis();
        System.out.println("耗时"+df.format((float)(end-start)/1000)+"s");
        long start2= System.currentTimeMillis();
        System.out.println(checkBySDK(content));
        long end2 = System.currentTimeMillis();
        System.out.println("耗时"+df.format((float)(end2-start2)/1000)+"s");
    }
    /**
     * 百度检查文字输入是否合格
     * 调api接口实现
     * @param content
     * @return
     */
    public static boolean check(String content){
        HttpClient client = HttpClientBuilder.create().build();
        String url = BaiduSensitiveConfig.WORD_URL+"?access_token="+AuthService.getAuth();
        HttpPost post = new HttpPost(url);

        JSONObject response = null;
        try {
            StringEntity s = new StringEntity("content="+content);
            s.setContentEncoding("UTF-8");
            s.setContentType("application/x-www-form-urlencoded");
            post.setEntity(s);
            HttpResponse res = client.execute(post);
            //200
            if(res.getStatusLine().getStatusCode() == HttpStatus.SC_OK){
                String result = EntityUtils.toString(res.getEntity());
                // 返回json格式：
                System.out.println(result);
                response = JSONObject.parseObject(result);
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        if (response.containsKey("result")){
            int result = JSONObject.parseObject(response.get("result").toString()).getInteger("spam");
            if (result==0) {return true;}
        }

        return false;

    }

    /**
     * 百度验证文件合法
     * 调SDK实现
     * @return
     */
    public static boolean checkBySDK(String content){
        AipContentCensor client = BaiduSensitiveImg.getClientInstance();
        org.json.JSONObject response = client.antiSpam(content, null);
        System.out.println(response.toString());
        if (response.has("result")){
            int result = JSONObject.parseObject(response.get("result").toString()).getInteger("spam");
            if (result==0) {return true;}
        }
        return false;
    }
}  

注：调用api接口时需要获取access_token，方法在百度文档中可以找到。

package com.mwztc.utils.baidu;

import com.mwztc.config.BaiduSensitiveConfig;
import org.json.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import java.util.Map;

/**
 * 获取百度云接口调用token
 */
public class AuthService {

    /**
     * 获取权限token
     * @return 返回示例：
     * {
     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "百度云应用的AK";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "百度云应用的SK";
        return getAuth(BaiduSensitiveConfig.API_KEY, BaiduSensitiveConfig.SECRET_KEY);
    }

    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     * @param ak - 百度云官网获取的 API Key
     * @param sk - 百度云官网获取的 Securet Key
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);
            JSONObject jsonObject = new JSONObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }

}