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  • Scala Http请求工具类

    import java.io.IOException
    import java.util
    import org.apache.http.client.ClientProtocolException
    import org.apache.http.client.entity.UrlEncodedFormEntity
    import org.apache.http.client.methods.{HttpGet, HttpPost}
    import org.apache.http.impl.client.{DefaultHttpClient, HttpClients}
    import org.apache.http.message.BasicNameValuePair
    import org.apache.http.util.EntityUtils
    import org.slf4j.LoggerFactory
    import scala.collection.JavaConversions._
    import scala.reflect.macros.ParseException

    object HttpClientUtils {

    val logger = LoggerFactory.getLogger("out")

    def get(url: String): String = {
    val httpclient = new DefaultHttpClient()
    try {
    // 创建httpget.
    val httpget = new HttpGet(url)
    // 执行get请求.
    val response = httpclient.execute(httpget)
    try {
    // 获取响应实体
    val entity = response.getEntity()
    EntityUtils.toString(entity, "utf-8")
    } finally {
    response.close()
    }
    } catch {
    case ex: ClientProtocolException => {logger.error(ex.getMessage);null}
    case ex: ParseException => {logger.error(ex.getMessage);null}
    case ex: IOException => {logger.error(ex.getMessage);null}
    } finally {
    // 关闭连接,释放资源
    httpclient.close()
    }

    }

    def post(url: String, map: Map[String,String]): String = {
    //创建httpclient对象
    val client = HttpClients.createDefault
    try {
    //创建post方式请求对象
    val httpPost = new HttpPost(url)
    //装填参数
    val nvps:util.ArrayList[BasicNameValuePair] = new util.ArrayList[BasicNameValuePair]
    if (map != null) {
    for (entry <- map.entrySet) {
    nvps.add(new BasicNameValuePair(entry.getKey, entry.getValue))
    }
    }
    //设置参数到请求对象中
    httpPost.setEntity(new UrlEncodedFormEntity(nvps, "UTF-8"))
    //执行请求操作,并拿到结果(同步阻塞)
    val response = client.execute(httpPost)
    //获取结果实体
    val entity = response.getEntity
    var body = ""
    if (entity != null) { //按指定编码转换结果实体为String类型
    body = EntityUtils.toString(entity, "UTF-8")
    }
    //释放链接
    response.close()
    body
    } finally {
    client.close()
    }
    }
    }

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  • 原文地址:https://www.cnblogs.com/tree1123/p/13152895.html
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