通過httpclient的get post方式調(diào)用http很常見。一般都是
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httpclient client = new defaulthttpclient(); httppost post = new httppost(http://127.0.0.1/login); |
但是如果要調(diào)用https這個方式就不行了。就要修改defaulthttpclient
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<dependency> <groupid>org.apache.httpcomponents</groupid> <artifactid>httpclient</artifactid> <version>4.5.5</version></dependency><dependency> <groupid>com.alibaba</groupid> <artifactid>fastjson</artifactid> <version>1.2.47</version></dependency> |
先導(dǎo)入包
然后重寫defaulthttpclient的類
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import java.security.cert.certificateexception;import java.security.cert.x509certificate;import javax.net.ssl.sslcontext;import javax.net.ssl.trustmanager;import javax.net.ssl.x509trustmanager;import org.apache.http.conn.clientconnectionmanager;import org.apache.http.conn.scheme.scheme;import org.apache.http.conn.scheme.schemeregistry;import org.apache.http.conn.ssl.sslsocketfactory;import org.apache.http.impl.client.defaulthttpclient;public class sslclient extends defaulthttpclient { public sslclient() throws exception{ super(); sslcontext ctx = sslcontext.getinstance("tls"); x509trustmanager tm = new x509trustmanager() { @override public void checkclienttrusted(x509certificate[] chain, string authtype) throws certificateexception { } @override public void checkservertrusted(x509certificate[] chain, string authtype) throws certificateexception { } @override public x509certificate[] getacceptedissuers() { return null; } }; ctx.init(null, new trustmanager[]{tm}, null); sslsocketfactory ssf = new sslsocketfactory(ctx,sslsocketfactory.allow_all_hostname_verifier); clientconnectionmanager ccm = this.getconnectionmanager(); schemeregistry sr = ccm.getschemeregistry(); sr.register(new scheme("https", 443, ssf)); }} |
這時候就可以使用https方式調(diào)用了
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import org.apache.http.httpentity;import org.apache.http.httpresponse;import org.apache.http.statusline;import org.apache.http.client.httpclient;import org.apache.http.client.methods.httpget;import org.apache.http.client.methods.httppost;import org.apache.http.entity.stringentity;import org.apache.http.message.basicheader;import org.apache.http.util.entityutils;public class httpclientutil { public static string doget(string url,string charset) throws exception{ httpclient httpclient = null; httpget httpget = null; string result = null; httpclient = new sslclient(); httpget = new httpget(url); httpget.addheader("content-type", "application/json"); httpget.setentity(se); httpresponse response = httpclient.execute(httpget); if(response != null){ httpentity resentity = response.getentity(); if(resentity != null){ result = entityutils.tostring(resentity,charset); } } return result; } public static string dopost(string url,string json,string charset) throws exception{ httpclient httpclient = null; httppost httppost = null; string result = null; httpclient = new sslclient(); httppost = new httppost(url); httppost.addheader("content-type", "application/json"); stringentity se = new stringentity(json); se.setcontenttype("text/json"); se.setcontentencoding(new basicheader("content-type", "application/json")); httppost.setentity(se); httpresponse response = httpclient.execute(httppost); if(response != null){ httpentity resentity = response.getentity(); if(resentity != null){ result = entityutils.tostring(resentity,charset); } } return result; } } |
post調(diào)用代碼
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public static void main(string[] args) throws exception{ string url = "https://127.0.0.1/getuser"; string json = "{\"id\":1}"; string str = httpclientutil.dopost(url, json, "utf-8"); system.out.println(str); } |
get調(diào)用代碼
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public static void main(string[] args) throws exception{ string url = "https://127.0.0.1/getuser?id=1"; string str = httpclientutil.dopost(url, "utf-8"); system.out.println(str); } |
stringentity參數(shù)說明
se.setcontentencoding(new basicheader(“content-type”, “application/json”));
使用的是json模式 所以傳的格式是json
application/xhtml+xml ：xhtml格式
application/xml ： xml數(shù)據(jù)格式
application/atom+xml ：atom xml聚合格式
application/json ： json數(shù)據(jù)格式
application/pdf ：pdf格式
application/msword ： word文檔格式
application/octet-stream ： 二進制流數(shù)據(jù)（如常見的文件下載）
application/x-www-form-urlencoded ： 中默認的enctype，form表單數(shù)據(jù)被編碼為key/value格式發(fā)送到服務(wù)器（表單默認的提交數(shù)據(jù)的格式）
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httppost.addheader("content-type", " application/x-www-form-urlencoded");list<namevaluepair> params=new arraylist<>();params.add(new basicnamevaluepair("key1","value1"));params.add(new basicnamevaluepair("key2","value2"));params.add(new basicnamevaluepair("key3","value3"));urlencodedformentity entity=new urlencodedformentity(params,"utf-8");httppost.setentity(entity); |
如果要采用表單提交方式就需要修改成上面所描述的方式。
到此這篇關(guān)于java利用httpclient通過get、post方式調(diào)用https接口的文章就介紹到這了,更多相關(guān)java調(diào)用https接口內(nèi)容請搜索服務(wù)器之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持服務(wù)器之家！
原文鏈接：https://blog.csdn.net/terry711/article/details/112471780
