suchen
HeimJavajavaLernprogrammorg.apache.httpcomponents:httpclient-Dienstprogrammklasse

Basierend auf httpclient Version 4.4.1

Da HTTP-Verbindungen drei Handshakes erfordern, werden Ressourcen und Zeit verschwendet, wenn häufige Anrufe erforderlich sind

Verwenden Sie also den Verbindungspool, um eine Verbindung herzustellen

Änderung entsprechend dem tatsächlichen Bedarf Die maximale Anzahl von Verbindungen im Verbindungspool und die maximale Anzahl von Verbindungen im Routing

 Eine weitere Sache, die es zu beachten gilt, ist

   // 释放Socket流
     response.close();
     // 释放Connection
     // httpClient.close();<br><br>
<span style="color: #008080">  1</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.HttpEntity;
</span><span style="color: #008080">  2</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.NameValuePair;
</span><span style="color: #008080">  3</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.config.RequestConfig;
</span><span style="color: #008080">  4</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.entity.UrlEncodedFormEntity;
</span><span style="color: #008080">  5</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.methods.CloseableHttpResponse;
</span><span style="color: #008080">  6</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.methods.HttpGet;
</span><span style="color: #008080">  7</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.methods.HttpPost;
</span><span style="color: #008080">  8</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.methods.HttpRequestBase;
</span><span style="color: #008080">  9</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.client.utils.URIBuilder;
</span><span style="color: #008080"> 10</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.config.SocketConfig;
</span><span style="color: #008080"> 11</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.entity.StringEntity;
</span><span style="color: #008080"> 12</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.impl.client.CloseableHttpClient;
</span><span style="color: #008080"> 13</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.impl.client.HttpClients;
</span><span style="color: #008080"> 14</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
</span><span style="color: #008080"> 15</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.message.BasicNameValuePair;
</span><span style="color: #008080"> 16</span> <span style="color: #0000ff">import</span><span style="color: #000000"> org.apache.http.util.EntityUtils;
</span><span style="color: #008080"> 17</span> 
<span style="color: #008080"> 18</span> <span style="color: #0000ff">import</span><span style="color: #000000"> java.io.IOException;
</span><span style="color: #008080"> 19</span> <span style="color: #0000ff">import</span><span style="color: #000000"> java.io.UnsupportedEncodingException;
</span><span style="color: #008080"> 20</span> <span style="color: #0000ff">import</span><span style="color: #000000"> java.net.URISyntaxException;
</span><span style="color: #008080"> 21</span> <span style="color: #0000ff">import</span><span style="color: #000000"> java.util.ArrayList;
</span><span style="color: #008080"> 22</span> <span style="color: #0000ff">import</span><span style="color: #000000"> java.util.Map;
</span><span style="color: #008080"> 23</span> 
<span style="color: #008080"> 24</span> <span style="color: #008000">/**</span>
<span style="color: #008080"> 25</span> <span style="color: #008000"> * Created by lidada on 2017/6/9.
</span><span style="color: #008080"> 26</span>  <span style="color: #008000">*/</span>
<span style="color: #008080"> 27</span> <span style="color: #0000ff">public</span> <span style="color: #0000ff">class</span><span style="color: #000000"> HttpClientUtils {
</span><span style="color: #008080"> 28</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span><span style="color: #000000"> PoolingHttpClientConnectionManager cm;
</span><span style="color: #008080"> 29</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String EMPTY_STR = ""<span style="color: #000000">;
</span><span style="color: #008080"> 30</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String CONTENT_TYPE_UTF_8 = "UTF-8"<span style="color: #000000">;
</span><span style="color: #008080"> 31</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String CONTENT_TYPE_GBK = "GBK"<span style="color: #000000">;
</span><span style="color: #008080"> 32</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> String CONTENT_TYPE_JSON = "application/json"<span style="color: #000000">;
</span><span style="color: #008080"> 33</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> <span style="color: #0000ff">final</span> <span style="color: #0000ff">int</span> CONNECTION_TIMEOUT_MS = 60000<span style="color: #000000">;
</span><span style="color: #008080"> 34</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> <span style="color: #0000ff">final</span> <span style="color: #0000ff">int</span> SO_TIMEOUT_MS = 60000<span style="color: #000000">;
</span><span style="color: #008080"> 35</span> 
<span style="color: #008080"> 36</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> <span style="color: #0000ff">void</span><span style="color: #000000"> init() {
</span><span style="color: #008080"> 37</span>         <span style="color: #0000ff">if</span> (cm == <span style="color: #0000ff">null</span><span style="color: #000000">) {
</span><span style="color: #008080"> 38</span>             cm = <span style="color: #0000ff">new</span><span style="color: #000000"> PoolingHttpClientConnectionManager();
</span><span style="color: #008080"> 39</span>             cm.setMaxTotal(50);<span style="color: #008000">//</span><span style="color: #008000"> 整个连接池最大连接数</span>
<span style="color: #008080"> 40</span>             cm.setDefaultMaxPerRoute(5);<span style="color: #008000">//</span><span style="color: #008000"> 每路由最大连接数,默认值是2</span>
<span style="color: #008080"> 41</span>             SocketConfig sc =<span style="color: #000000"> SocketConfig.custom().setSoTimeout(SO_TIMEOUT_MS).build();
</span><span style="color: #008080"> 42</span> <span style="color: #000000">            cm.setDefaultSocketConfig(sc);
</span><span style="color: #008080"> 43</span> <span style="color: #000000">        }
</span><span style="color: #008080"> 44</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 45</span> 
<span style="color: #008080"> 46</span>     <span style="color: #008000">/**</span>
<span style="color: #008080"> 47</span> <span style="color: #008000">     * 通过连接池获取HttpClient
</span><span style="color: #008080"> 48</span> <span style="color: #008000">     *
</span><span style="color: #008080"> 49</span> <span style="color: #008000">     * </span><span style="color: #808080">@return</span>
<span style="color: #008080"> 50</span>      <span style="color: #008000">*/</span>
<span style="color: #008080"> 51</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span><span style="color: #000000"> CloseableHttpClient getHttpClient() {
</span><span style="color: #008080"> 52</span> <span style="color: #000000">        init();
</span><span style="color: #008080"> 53</span>         <span style="color: #0000ff">return</span> HttpClients.custom().setConnectionManager(cm).setConnectionManagerShared(<span style="color: #0000ff">true</span><span style="color: #000000">) .build();
</span><span style="color: #008080"> 54</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 55</span> 
<span style="color: #008080"> 56</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span><span style="color: #000000"> String httpGetRequest(String url) {
</span><span style="color: #008080"> 57</span>         HttpGet httpGet = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpGet(url);
</span><span style="color: #008080"> 58</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpGet);
</span><span style="color: #008080"> 59</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 60</span> 
<span style="color: #008080"> 61</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> String httpGetRequest(String url, Map<string object> params) <span style="color: #0000ff">throws</span><span style="color: #000000"> URISyntaxException {
</span><span style="color: #008080"> 62</span>         URIBuilder ub = <span style="color: #0000ff">new</span><span style="color: #000000"> URIBuilder();
</span><span style="color: #008080"> 63</span> <span style="color: #000000">        ub.setPath(url);
</span><span style="color: #008080"> 64</span> 
<span style="color: #008080"> 65</span>         ArrayList<namevaluepair> pairs =<span style="color: #000000"> covertParams2NVPS(params);
</span><span style="color: #008080"> 66</span> <span style="color: #000000">        ub.setParameters(pairs);
</span><span style="color: #008080"> 67</span> 
<span style="color: #008080"> 68</span>         HttpGet httpGet = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpGet(ub.build());
</span><span style="color: #008080"> 69</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpGet);
</span><span style="color: #008080"> 70</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 71</span> 
<span style="color: #008080"> 72</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> String httpGetRequest(String url, Map<string object> headers, Map<string object><span style="color: #000000"> params)
</span><span style="color: #008080"> 73</span>             <span style="color: #0000ff">throws</span><span style="color: #000000"> URISyntaxException {
</span><span style="color: #008080"> 74</span>         URIBuilder ub = <span style="color: #0000ff">new</span><span style="color: #000000"> URIBuilder();
</span><span style="color: #008080"> 75</span> <span style="color: #000000">        ub.setPath(url);
</span><span style="color: #008080"> 76</span> 
<span style="color: #008080"> 77</span>         ArrayList<namevaluepair> pairs =<span style="color: #000000"> covertParams2NVPS(params);
</span><span style="color: #008080"> 78</span> <span style="color: #000000">        ub.setParameters(pairs);
</span><span style="color: #008080"> 79</span> 
<span style="color: #008080"> 80</span>         HttpGet httpGet = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpGet(ub.build());
</span><span style="color: #008080"> 81</span>         <span style="color: #0000ff">for</span> (Map.Entry<string object><span style="color: #000000"> param : headers.entrySet()) {
</span><span style="color: #008080"> 82</span> <span style="color: #000000">            httpGet.addHeader(param.getKey(), String.valueOf(param.getValue()));
</span><span style="color: #008080"> 83</span> <span style="color: #000000">        }
</span><span style="color: #008080"> 84</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpGet);
</span><span style="color: #008080"> 85</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 86</span> 
<span style="color: #008080"> 87</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span><span style="color: #000000"> String httpPostRequest(String url) {
</span><span style="color: #008080"> 88</span>         HttpPost httpPost = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpPost(url);
</span><span style="color: #008080"> 89</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpPost);
</span><span style="color: #008080"> 90</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 91</span> 
<span style="color: #008080"> 92</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> String httpPostRequest(String url, Map<string object> params) <span style="color: #0000ff">throws</span><span style="color: #000000"> UnsupportedEncodingException {
</span><span style="color: #008080"> 93</span>         HttpPost httpPost = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpPost(url);
</span><span style="color: #008080"> 94</span>         ArrayList<namevaluepair> pairs =<span style="color: #000000"> covertParams2NVPS(params);
</span><span style="color: #008080"> 95</span>         httpPost.setEntity(<span style="color: #0000ff">new</span><span style="color: #000000"> UrlEncodedFormEntity(pairs, CONTENT_TYPE_UTF_8));
</span><span style="color: #008080"> 96</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpPost);
</span><span style="color: #008080"> 97</span> <span style="color: #000000">    }
</span><span style="color: #008080"> 98</span> 
<span style="color: #008080"> 99</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> String httpPostRequest(String url, Map<string object> headers, Map<string object><span style="color: #000000"> params)
</span><span style="color: #008080">100</span>             <span style="color: #0000ff">throws</span><span style="color: #000000"> UnsupportedEncodingException {
</span><span style="color: #008080">101</span>         HttpPost httpPost = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpPost(url);
</span><span style="color: #008080">102</span> 
<span style="color: #008080">103</span>         <span style="color: #0000ff">for</span> (Map.Entry<string object><span style="color: #000000"> param : headers.entrySet()) {
</span><span style="color: #008080">104</span> <span style="color: #000000">            httpPost.addHeader(param.getKey(), String.valueOf(param.getValue()));
</span><span style="color: #008080">105</span> <span style="color: #000000">        }
</span><span style="color: #008080">106</span> 
<span style="color: #008080">107</span>         ArrayList<namevaluepair> pairs =<span style="color: #000000"> covertParams2NVPS(params);
</span><span style="color: #008080">108</span>         httpPost.setEntity(<span style="color: #0000ff">new</span><span style="color: #000000"> UrlEncodedFormEntity(pairs, CONTENT_TYPE_UTF_8));
</span><span style="color: #008080">109</span> 
<span style="color: #008080">110</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpPost);
</span><span style="color: #008080">111</span> <span style="color: #000000">    }
</span><span style="color: #008080">112</span> 
<span style="color: #008080">113</span>     <span style="color: #0000ff">public</span> <span style="color: #0000ff">static</span> String httpPostJSON(String url, String json) <span style="color: #0000ff">throws</span><span style="color: #000000"> UnsupportedEncodingException {
</span><span style="color: #008080">114</span>         HttpPost httpPost = <span style="color: #0000ff">new</span><span style="color: #000000"> HttpPost(url);
</span><span style="color: #008080">115</span>         StringEntity s = <span style="color: #0000ff">new</span><span style="color: #000000"> StringEntity(json);
</span><span style="color: #008080">116</span> <span style="color: #000000">        s.setContentEncoding(CONTENT_TYPE_UTF_8);
</span><span style="color: #008080">117</span>         s.setContentType(CONTENT_TYPE_JSON);<span style="color: #008000">//</span><span style="color: #008000"> 发送json数据需要设置contentType</span>
<span style="color: #008080">118</span> <span style="color: #000000">        httpPost.setEntity(s);
</span><span style="color: #008080">119</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> getResult(httpPost);
</span><span style="color: #008080">120</span> <span style="color: #000000">    }
</span><span style="color: #008080">121</span> 
<span style="color: #008080">122</span> 
<span style="color: #008080">123</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span> ArrayList<namevaluepair> covertParams2NVPS(Map<string object><span style="color: #000000"> params) {
</span><span style="color: #008080">124</span>         ArrayList<namevaluepair> pairs = <span style="color: #0000ff">new</span> ArrayList<span style="color: #000000">();
</span><span style="color: #008080">125</span>         <span style="color: #0000ff">for</span> (Map.Entry<string object><span style="color: #000000"> param : params.entrySet()) {
</span><span style="color: #008080">126</span>             pairs.add(<span style="color: #0000ff">new</span><span style="color: #000000"> BasicNameValuePair(param.getKey(), String.valueOf(param.getValue())));
</span><span style="color: #008080">127</span> <span style="color: #000000">        }
</span><span style="color: #008080">128</span> 
<span style="color: #008080">129</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> pairs;
</span><span style="color: #008080">130</span> <span style="color: #000000">    }
</span><span style="color: #008080">131</span> 
<span style="color: #008080">132</span>     <span style="color: #008000">/**</span>
<span style="color: #008080">133</span> <span style="color: #008000">     * 处理Http请求
</span><span style="color: #008080">134</span> <span style="color: #008000">     *
</span><span style="color: #008080">135</span> <span style="color: #008000">     * </span><span style="color: #808080">@param</span><span style="color: #008000"> request
</span><span style="color: #008080">136</span> <span style="color: #008000">     * </span><span style="color: #808080">@return</span>
<span style="color: #008080">137</span>      <span style="color: #008000">*/</span>
<span style="color: #008080">138</span>     <span style="color: #0000ff">private</span> <span style="color: #0000ff">static</span><span style="color: #000000"> String getResult(HttpRequestBase request) {
</span><span style="color: #008080">139</span> 
<span style="color: #008080">140</span>         RequestConfig.Builder config =<span style="color: #000000"> RequestConfig.copy(RequestConfig.DEFAULT);
</span><span style="color: #008080">141</span> <span style="color: #000000">        config.setConnectionRequestTimeout(CONNECTION_TIMEOUT_MS);
</span><span style="color: #008080">142</span> <span style="color: #000000">        config.setSocketTimeout(SO_TIMEOUT_MS);
</span><span style="color: #008080">143</span> 
<span style="color: #008080">144</span> <span style="color: #000000">        request.setConfig(config.build());
</span><span style="color: #008080">145</span> 
<span style="color: #008080">146</span>         <span style="color: #008000">//</span><span style="color: #008000"> CloseableHttpClient httpClient = HttpClients.createDefault();</span>
<span style="color: #008080">147</span>         CloseableHttpClient httpClient =<span style="color: #000000"> getHttpClient();
</span><span style="color: #008080">148</span>         CloseableHttpResponse response = <span style="color: #0000ff">null</span><span style="color: #000000">;
</span><span style="color: #008080">149</span>         <span style="color: #0000ff">try</span><span style="color: #000000"> {
</span><span style="color: #008080">150</span>             response =<span style="color: #000000"> httpClient.execute(request);
</span><span style="color: #008080">151</span>             <span style="color: #008000">//</span><span style="color: #008000"> response.getStatusLine().getStatusCode();</span>
<span style="color: #008080">152</span>             HttpEntity entity =<span style="color: #000000"> response.getEntity();
</span><span style="color: #008080">153</span>             <span style="color: #0000ff">if</span> (entity != <span style="color: #0000ff">null</span><span style="color: #000000">) {
</span><span style="color: #008080">154</span>                 <span style="color: #008000">//</span><span style="color: #008000"> long len = entity.getContentLength();</span><span style="color: #008000">//</span><span style="color: #008000"> -1 表示长度未知</span>
<span style="color: #008080">155</span>                 <span style="color: #0000ff">return</span><span style="color: #000000"> EntityUtils.toString(entity);
</span><span style="color: #008080">156</span> <span style="color: #000000">            }
</span><span style="color: #008080">157</span>         } <span style="color: #0000ff">catch</span><span style="color: #000000"> (IOException e) {
</span><span style="color: #008080">158</span> <span style="color: #000000">            e.printStackTrace();
</span><span style="color: #008080">159</span>         } <span style="color: #0000ff">finally</span><span style="color: #000000"> {
</span><span style="color: #008080">160</span>             <span style="color: #0000ff">try</span><span style="color: #000000"> {
</span><span style="color: #008080">161</span>                 <span style="color: #008000">//</span><span style="color: #008000"> 释放Socket流</span>
<span style="color: #008080">162</span> <span style="color: #000000">                response.close();
</span><span style="color: #008080">163</span>                 <span style="color: #008000">//</span><span style="color: #008000"> 释放Connection
</span><span style="color: #008080">164</span>                 <span style="color: #008000">//</span><span style="color: #008000"> httpClient.close();</span>
<span style="color: #008080">165</span>             } <span style="color: #0000ff">catch</span><span style="color: #000000"> (IOException e) {
</span><span style="color: #008080">166</span> <span style="color: #000000">                e.printStackTrace();
</span><span style="color: #008080">167</span> <span style="color: #000000">            }
</span><span style="color: #008080">168</span> <span style="color: #000000">        }
</span><span style="color: #008080">169</span> 
<span style="color: #008080">170</span>         <span style="color: #0000ff">return</span><span style="color: #000000"> EMPTY_STR;
</span><span style="color: #008080">171</span> <span style="color: #000000">    }
</span><span style="color: #008080">172</span> 
<span style="color: #008080">173</span> }</string></namevaluepair></string></namevaluepair></namevaluepair></string></string></string></namevaluepair></string></string></namevaluepair></string></string></namevaluepair></string>

Das obige ist der detaillierte Inhalt vonorg.apache.httpcomponents:httpclient-Dienstprogrammklasse. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!

Stellungnahme
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn

Heiße KI -Werkzeuge

Undresser.AI Undress

Undresser.AI Undress

KI-gestützte App zum Erstellen realistischer Aktfotos

AI Clothes Remover

AI Clothes Remover

Online-KI-Tool zum Entfernen von Kleidung aus Fotos.

Undress AI Tool

Undress AI Tool

Ausziehbilder kostenlos

Clothoff.io

Clothoff.io

KI-Kleiderentferner

AI Hentai Generator

AI Hentai Generator

Erstellen Sie kostenlos Ai Hentai.

Heißer Artikel

R.E.P.O. Energiekristalle erklärten und was sie tun (gelber Kristall)
1 Monate vorBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Beste grafische Einstellungen
1 Monate vorBy尊渡假赌尊渡假赌尊渡假赌
Will R.E.P.O. Crossplay haben?
1 Monate vorBy尊渡假赌尊渡假赌尊渡假赌

Heiße Werkzeuge

VSCode Windows 64-Bit-Download

VSCode Windows 64-Bit-Download

Ein kostenloser und leistungsstarker IDE-Editor von Microsoft

Notepad++7.3.1

Notepad++7.3.1

Einfach zu bedienender und kostenloser Code-Editor

MinGW – Minimalistisches GNU für Windows

MinGW – Minimalistisches GNU für Windows

Dieses Projekt wird derzeit auf osdn.net/projects/mingw migriert. Sie können uns dort weiterhin folgen. MinGW: Eine native Windows-Portierung der GNU Compiler Collection (GCC), frei verteilbare Importbibliotheken und Header-Dateien zum Erstellen nativer Windows-Anwendungen, einschließlich Erweiterungen der MSVC-Laufzeit zur Unterstützung der C99-Funktionalität. Die gesamte MinGW-Software kann auf 64-Bit-Windows-Plattformen ausgeführt werden.

WebStorm-Mac-Version

WebStorm-Mac-Version

Nützliche JavaScript-Entwicklungstools

SublimeText3 Linux neue Version

SublimeText3 Linux neue Version

SublimeText3 Linux neueste Version