com.glaf.core.util.http.CommonsHttpClientUtils.java Source code

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Here is the source code for com.glaf.core.util.http.CommonsHttpClientUtils.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.glaf.core.util.http;

import java.io.IOException;
import java.util.Map;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class CommonsHttpClientUtils {

    public static String doGet(String url) {
        return doGet(url, "UTF-8", null);
    }

    public static String doGet(String url, Map<String, String> dataMap) {
        return doGet(url, "UTF-8", dataMap);
    }

    /**
     * ??GET
     * 
     * @param url
     *            ??
     * @param encoding
     *            
     * @param dataMap
     *            ?
     * 
     * @return
     */
    public static String doGet(String url, String encoding, Map<String, String> dataMap) {
        GetMethod method = null;
        String content = null;
        try {
            method = new GetMethod(url);
            method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, encoding);
            method.addRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=" + encoding);
            if (dataMap != null && !dataMap.isEmpty()) {
                NameValuePair[] nameValues = new NameValuePair[dataMap.size()];
                int i = 0;
                for (Map.Entry<String, String> entry : dataMap.entrySet()) {
                    String name = entry.getKey().toString();
                    String value = entry.getValue();
                    nameValues[i] = new NameValuePair(name, value);
                    i++;
                }
                method.setQueryString(nameValues);
            }
            HttpClient client = new HttpClient();
            int status = client.executeMethod(method);
            if (status == HttpStatus.SC_OK) {
                content = method.getResponseBodyAsString();
            }
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        } finally {
            if (method != null) {
                method.releaseConnection();
                method = null;
            }
        }
        return content;
    }

    public static String doPost(String url) {
        return doPost(url, "UTF-8", null);
    }

    public static String doPost(String url, Map<String, String> dataMap) {
        return doPost(url, "UTF-8", dataMap);
    }

    /**
     * ??POST
     * 
     * @param url
     *            ??
     * @param encoding
     *            
     * @param dataMap
     *            ?
     * 
     * @return
     */
    public static String doPost(String url, String encoding, Map<String, String> dataMap) {
        PostMethod method = null;
        String content = null;
        try {
            method = new PostMethod(url);
            method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, encoding);
            method.addRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=" + encoding);
            if (dataMap != null && !dataMap.isEmpty()) {
                NameValuePair[] nameValues = new NameValuePair[dataMap.size()];
                int i = 0;
                for (Map.Entry<String, String> entry : dataMap.entrySet()) {
                    String name = entry.getKey().toString();
                    String value = entry.getValue();
                    nameValues[i] = new NameValuePair(name, value);
                    i++;
                }
                method.setRequestBody(nameValues);
            }
            HttpClient client = new HttpClient();
            int status = client.executeMethod(method);
            if (status == HttpStatus.SC_OK) {
                content = method.getResponseBodyAsString();
            }
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        } finally {
            if (method != null) {
                method.releaseConnection();
                method = null;
            }
        }
        return content;
    }

    private CommonsHttpClientUtils() {

    }

}