When an HTTP request is requested, the object parameter by reflection stitching tool

Package Org.te;import Java.lang.reflect.field;import Java.lang.reflect.invocationtargetexception;import Java.lang.reflect.method;import Java.text.simpledateformat;import Java.util.date;public class GetParamter {public static void Main (string[] args) throws Exception {User user = new User (); User.setid (1); User.setname ("name"); String param = Getparamter.getpara (user); System.out.println (param);} public static String Getpara (gen<?> Gen) throws Exception {class<?> Clz = Gen.getgentype (). GetClass (); StringBuffer result = new StringBuffer (512); field[] field = Clz.getdeclaredfields (); Result.append ("? ="); for (field F:field) {Object o = Getmethodvalue (CLZ, GEN.GETG Entype (), F.getname ()); if (o! = null &&! "). Equals (O.tostring ())) {result.append (O + "&");}} Result.delete (Result.length ()-1, Result.length ()); return result.tostring (); /** * Get values based on fields * * @param CLZ * @param o * @param field * @return */@SuppressWarnings ("Rawtypes") public static Object Getm Ethodvalue (Class Clz,Object o, String field) throws Nosuchmethodexception, Securityexception,illegalaccessexception, illegalargumentexception,invocationtargetexception {Character Charss = Field.charat (0); field = Field.replacefirst ( Charss.tostring (), Character.touppercase (CHARSS) + "");//Get Value @suppresswarnings ("unchecked") Method GetMethod = Clz.getdeclaredmethod ("Get" + field, new class[] {}); Object value = Getmethod.invoke (o, new object[] {}); return value;} public static string Convertype (Object value, String dateformat) {string rresult = "";//if (value instanceof Integer)//{ int result = (Integer) value;//return result;////} else if (value instanceof Float)//{//float result = (float) valu e;//return result;////} else if (value instanceof Double)//{//double result = (double) value;//return result;////} E LSE if (value instanceof long)//{//Long result = (long) value;//return result;//}//if (value instanceof Boolean)//{/ /Boolean result = (Boolean) value;//return result;////} elseif (value inStanceof date) {Date date = (date) value;if ("". Equals (DateFormat) | | NULL = = DateFormat) {DateFormat = "yyyy-mm-dd";} Illegalargumentexceptionsimpledateformat SDF = new SimpleDateFormat (dateformat); rresult = Sdf.format (date);} else if (value instanceof byte[]) {//} else {return value + "";} return rresult;}}

Package Org.te;public interface Gen<t> {T getgentype ();}

Package Org.te;public class User implements gen<user> {private integer id;private String name;public integer getId () {return ID;} public void SetId (Integer id) {this.id = ID;} Public String GetName () {return name;} public void SetName (String name) {this.name = name;} @Overridepublic User Getgentype () {return this;} @Overridepublic String toString () {return "User [id=" + ID + ", name=" + name + "]";}}

HTTP-----------------------

Package Org.te;import Java.io.bufferedreader;import Java.io.ioexception;import java.io.inputstreamreader;import Java.io.printwriter;import java.net.url;import java.net.urlconnection;import Java.util.list;import java.util.Map; public class HttpRequest {/** * a request to send a GET method to a specified URL * * @param URL * Send the requested URL * @param pa     RAM * Request parameters, request parameters should be in the form of name1=value1&name2=value2.        * The response result of the remote resource represented by the @return URL */public static string Sendget (string URL, string param) {string result = "";        BufferedReader in = null;            try {String urlnamestring = URL + "?" + param;            URL realurl = new URL (urlnamestring);            The connection between open and URL urlconnection connection = Realurl.openconnection ();            Set the generic request attribute Connection.setrequestproperty ("accept", "*/*");            Connection.setrequestproperty ("Connection", "keep-alive");              Connection.setrequestproperty ("User-agent",      "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;            SV1) ");            Establish the actual connection connection.connect ();            Get all response header fields Map<string, list<string>> Map = Connection.getheaderfields (); Traverse all response header fields for (String Key:map.keySet ()) {System.out.println (key + "--->" + map.get (key            ));                    }//define BufferedReader input stream to read the response of the URL in = new BufferedReader (New InputStreamReader (            Connection.getinputstream ()));            String Line;            while (line = In.readline ()) = null) {result + = line; }} catch (Exception e) {System.out.println ("Send GET request exception!)            "+ e);        E.printstacktrace (); }//Use finally block to close the input stream finally {try {if (in! = null) {In.clos                E ();            }} catch (Exception E2) {e2.printstacktrace ();}} return result;            /** * Request to send a POST method to the specified URL * * @param URL * Send the requested URL * @param param *     Request parameters, request parameters should be in the form of name1=value1&name2=value2.        * The response result of the remote resource represented by the @return */public static string Sendpost (string url, string param) {printwriter out = null;        BufferedReader in = null;        String result = "";            try {URL realurl = new URL (URL);            The connection between open and URL URLConnection conn = realurl.openconnection ();            Set the generic request attribute Conn.setrequestproperty ("Referer", "http://www.baidu.com");            Conn.setrequestproperty ("Accept", "*/*");            Conn.setrequestproperty ("Connection", "keep-alive"); Conn.setrequestproperty ("User-agent", "mozilla/4.0" (compatible; MSIE 6.0; Windows NT 5.1;            SV1) ");            The Send POST request must be set to the following two lines conn.setdooutput (true);            Conn.setdoinput (TRUE); Get URLConnection object correspondingThe output stream out = new PrintWriter (Conn.getoutputstream ());            Send request parameter out.print (param);            Flush output Stream Buffer Out.flush (); Defines the BufferedReader input stream to read the response of the URL in = new BufferedReader (New InputStreamReader (conn.getinput            Stream ()));            String Line;            while (line = In.readline ()) = null) {result + = line; }} catch (Exception e) {System.out.println ("send POST request exception!            "+e);        E.printstacktrace (); }//Use finally block to close the output stream, input stream finally{try{if (out!=null) {Out.close                ();                } if (In!=null) {in.close ();            }} catch (IOException ex) {ex.printstacktrace ();    }} return result; } public static void Main (string[] args) {//Send GET request//String s=httprequEst.sendget ("Http://192.168.20.249:8888/api/User/Login", "loginname=en&loginpwd=en");//                System.out.println (s); Send POST request String sr=httprequest.sendpost ("Http://192.168.20.249:8888/api/User/Login", "loginname=en&loginpwd        =en ");    System.out.println (SR); }}

When an HTTP request is requested, the object parameter by reflection stitching tool