有道翻译API+Jackson+HttpClient

在学习Redis的阻塞队列的时候，想到了传入JSON，然后出队列，在这个基础上，又想到了分布式，而这个JSON串来自于远程服务器，所以需要用HttpClient来执行这个请求响应网络服务器API的职能，后来看到了有道翻译API就顺手写了一个测试类。

第一步，新建一个Java Project
第二步，到apache官网下载httpclient 4.5项目，将jar包放到lib目录下
第三步，到百度下载jackson项目及Junit4项目的jar包，放到lib目录下
第四步，到有道翻译官网申请api接口
第五步，建立一些需要的class类
YouDao.java

package com.dby.json;

import java.util.Arrays;

/** * Created by suzunshou on 2016/5/12. */
public class YouDao {
    private String[] translation;
    private String query;
    private Basic basic;
    private int errorCode;
    private Web[] web;

    public String[] getTranslation() {
        return translation;
    }

    public void setTranslation(String[] translation) {
        this.translation = translation;
    }

    public String getQuery() {
        return query;
    }

    public void setQuery(String query) {
        this.query = query;
    }

    public Basic getBasic() {
        return basic;
    }

    public void setBasic(Basic basic) {
        this.basic = basic;
    }

    public int getErrorCode() {
        return errorCode;
    }

    public void setErrorCode(int errorCode) {
        this.errorCode = errorCode;
    }

    public Web[] getWeb() {
        return web;
    }

    public void setWeb(Web[] web) {
        this.web = web;
    }

    @Override
    public String toString() {
        return "YouDao{" +
                "translation=" + Arrays.toString(translation) +
                ", query='" + query + '\'' +
                ", basic=" + basic +
                ", errorCode=" + errorCode +
                ", web=" + Arrays.toString(web) +
                '}';
    }
}

Basic.java

package com.dby.json;

import com.fasterxml.jackson.annotation.JsonProperty;

import java.util.Arrays;

/** * Created by suzunshou on 2016/5/12. */
public class Basic {
    @JsonProperty("us-phonetic")
    private String us_phonetic;
    @JsonProperty("uk-phonetic")
    private String uk_phonetic;
    private String phonetic;
    private String[] explains;

    public String getUs_phonetic() {
        return us_phonetic;
    }

    public void setUs_phonetic(String us_phonetic) {
        this.us_phonetic = us_phonetic;
    }

    public String getUk_phonetic() {
        return uk_phonetic;
    }

    public void setUk_phonetic(String uk_phonetic) {
        this.uk_phonetic = uk_phonetic;
    }

    public String getPhonetic() {
        return phonetic;
    }

    public void setPhonetic(String phonetic) {
        this.phonetic = phonetic;
    }

    public String[] getExplains() {
        return explains;
    }

    public void setExplains(String[] explains) {
        this.explains = explains;
    }

    @Override
    public String toString() {
        return "Basic{" +
                "us_phonetic='" + us_phonetic + '\'' +
                ", uk_phonetic='" + uk_phonetic + '\'' +
                ", phonetic='" + phonetic + '\'' +
                ", explains=" + Arrays.toString(explains) +
                '}';
    }
}

Web.java

package com.dby.json;

import java.util.Arrays;

/** * Created by suzunshou on 2016/5/12. */
public class Web {
    private String key;
    private String[] value;

    public String getKey() {
        return key;
    }

    public void setKey(String key) {
        this.key = key;
    }

    public String[] getValue() {
        return value;
    }

    public void setValue(String[] value) {
        this.value = value;
    }

    @Override
    public String toString() {
        return "Web{" +
                "key='" + key + '\'' +
                ", value=" + Arrays.toString(value) +
                '}';
    }
}

第六步，新建一个测试类TestCase.java

package com.dby.json;

import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.TypeFactory;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URIBuilder;
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 org.junit.Test;

import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/** * Created by suzunshou on 2016/5/12. */
public class TestCase {  
    @Test
    public void testNet() throws Exception {
        ObjectMapper mapper = new ObjectMapper();
        CloseableHttpClient httpClient = HttpClients.createDefault();
        URI url = new URIBuilder("http://fanyi.youdao.com/openapi.do")
                .build();
        HttpPost HttpPost = new HttpPost(url.toString());
        List<NameValuePair> params = new ArrayList<>();
        params.add(new BasicNameValuePair("keyfrom", "atmoon"));
        params.add(new BasicNameValuePair("key", "1407453772"));
        params.add(new BasicNameValuePair("type", "data"));
        params.add(new BasicNameValuePair("doctype", "json"));
        params.add(new BasicNameValuePair("version", "1.1"));
        params.add(new BasicNameValuePair("q", "hello"));
        HttpPost.setEntity(new UrlEncodedFormEntity(params));
        CloseableHttpResponse response = httpClient.execute(HttpPost);
        String json = EntityUtils.toString(response.getEntity());
        System.out.println(json);
        YouDao youDao = mapper.readValue(json, YouDao.class);
        System.out.println(youDao.toString());
    }
}

返回结果

{"translation":["你好"],"basic":{"us-phonetic":"hɛˈlo, hə-","phonetic":"hə'ləʊ; he-","uk-phonetic":"hə'ləʊ; he-","explains":["n. 表示问候， 惊奇或唤起注意时的用语","int. 喂；哈罗","n. (Hello)人名；(法)埃洛"]},"query":"hello","errorCode":0,"web":[{"value":["你好","您好","hello"],"key":"Hello"},{"value":["凯蒂猫","昵称","匿称"],"key":"Hello Kitty"},{"value":["哈乐哈乐","乐扣乐扣"],"key":"Hello Bebe"}]}

YouDao{translation=[你好], query='hello', basic=Basic{us_phonetic='hɛˈlo, hə-', uk_phonetic='hə'ləʊ; he-', phonetic='hə'ləʊ; he-', explains=[n. 表示问候， 惊奇或唤起注意时的用语, int. 喂；哈罗, n. (Hello)人名；(法)埃洛]}, errorCode=0, web=[Web{key='Hello', value=[你好, 您好, hello]}, Web{key='Hello Kitty', value=[凯蒂猫, 昵称, 匿称]}, Web{key='Hello Bebe', value=[哈乐哈乐, 乐扣乐扣]}]}