C语言实现文件的des加解密实例

1、C语言实现文件的des加解密实例 c语言中的正则 ,d3.js画矢量图+可拖拽的实现思路 DOM2级事件处理程序跨浏览器兼容事件 ,exel导入/导出和csv文件导入、导出 ,Go http访问使用代理 golang进行socket通讯 ,hessian+hibernate 懒加载处理 ,HTML+CSS代码橙色导航菜单 html5 撞球游戏 / get 网络请求func Get(api string,params .Values)(rsbyte ,err error) var *. ,err=.Parse(api) if err!=nil fmt.Printf("解析错误:rn%v

2、",err) return nil,err /如果参数中有中文参数,这个方法会进行Encode/iOS KVO注册和监听方法 /C语言websocket编程 .RawQuery=params.Encode() resp,err:=http.Get(.String() if err!=nil fmt.Println("err:",err) return nil,err defer resp.Body.Close() return ioutil.ReadAll(resp.Body) / post 网络请求 ,params 是.Values类型func Post(api

3、 string, params .Values)(rsbyte,err error) resp,err:=http.PostForm(api, params) if err!=nil return nil ,err defer resp.Body.Close() return ioutil.ReadAll(resp.Body)/代码描述：基于GO的黄金数据接口调用代码实例/关联数据：黄金数据/css之before and after 代码 C#代码 using System;using System.Collections.Generic;using System.Linq;using Sys

4、tem.Text;using System.Net;using System.IO;using Xfrog.Net;using System.Diagnostics;using System.Web;void QEditor:setCurrentFile(const QString &fileName) m_currentFileName = fileName; ui->textEdit->document()->setModified(false);bool QEditor:maybeSave() if (ui->textEdit->document()

5、->isModified() QMessageBox:StandardButton ret; ret = QMessageBox:warning(this, tr("QEditor"), tr("The document has been modified.n" "Do you want to save your changes?"), QMessageBox:Save | QMessageBox:Discard | QMessageBox:Cancel); if (ret = QMessageBox:Save) return

6、save(); else if (ret = QMessageBox:Cancel) return false; return true;bool QEditor:savefile(const QString &fileName) QFile file(fileName); if (!file.open(QFile:WriteOnly | QFile:Text) QMessageBox:warning(this, tr("QEditor"), tr("Cannot write file %1:n%2.") .arg(fileName) .arg(

7、file.errorString(); return false; QTextStream out(&file); out << ui->textEdit->toPlainText(); setCurrentFile(fileName); ui->statusBar->showMessage(QString("%1 saved.").arg(fileName), 2000); return true;代码 Google Go代码 package mainimport ( "io/ioutil" "ne

8、t/http" "net/" "fmt" "encoding/json") /-/ 黄金数据调用示例代码 聚合数据/ 在线接口文档：www/docs/29/- const APPKEY = "*" /您申请的APPKEY func main() /1.上海黄金交易所 Request1() /2.上海期货交易所 Request2() /3.银行账户黄金 Request3() /1.上海黄金交易所func Request1() /请求地址 juhe :="web:8080/finance/gold/

9、shgold" /初始化参数 param:=.Values /配置请求参数,方法内部已处理encode问题,中文参数可以直接传参 param.Set("key",APPKEY) /APP Key param.Set("v","") /JSON格式版本(0或1)默认为0 /发送请求 data,err:=Get(juhe,param) if err!=nil fmt.Errorf("请求失败,错误信息:rn%v",err) else var netReturn mapstringinterface json.

10、Unmarshal(data,&netReturn) if netReturn"error_code".(float64)=0 fmt.Printf("接口返回result字段是:rn%v",netReturn"result") /2.上海期货交易所func Request2() /请求地址 juhe :="web:8080/finance/gold/shfuture" /初始化参数 param:=.Values /配置请求参数,方法内部已处理encode问题,中文参数可以直接传参 param.Set(&q

11、uot;key",APPKEY) /APP Key param.Set("v","") /JSON格式版本(0或1)默认为0 /发送请求 data,err:=Get(juhe,param) if err!=nil fmt.Errorf("请求失败,错误信息:rn%v",err) else var netReturn mapstringinterface json.Unmarshal(data,&netReturn) if netReturn"error_code".(float64)=0 fmt.

12、Printf("接口返回result字段是:rn%v",netReturn"result") /3.银行账户黄金func Request3() /请求地址 juhe :="web:8080/finance/gold/bankgold" /初始化参数 param:=.Values /配置请求参数,方法内部已处理encode问题,中文参数可以直接传参 param.Set("key",APPKEY) /APP Key /发送请求 data,err:=Get(juhe,param) if err!=nil fmt.Erro

13、rf("请求失败,错误信息:rn%v",err) else var netReturn mapstringinterface json.Unmarshal(data,&netReturn) if netReturn"error_code".(float64)=0 fmt.Printf("接口返回result字段是:rn%v",netReturn"result") /-/ 黄金数据调用示例代码 聚合数据/ 在线接口文档：www/docs/29/ 代码中JsonObject类下载地址:/- namespace

14、ConsoleAPI class Program static void Main(string args) string appkey = "*" /配置您申请的appkey /1.上海黄金交易所 string 1 = "web:8080/finance/gold/shgold" var parameters1 = new Dictionary<string, string>(); parameters1.Add("key", appkey);/你申请的key parameters1.Add("v"

15、, ""); /JSON格式版本(0或1)默认为0 string result1 = sendPost(1, parameters1, "get"); JsonObject newObj1 = new JsonObject(result1); String errorCode1 = newObj1"error_code".Value; if (errorCode1 = "0") Debug.WriteLine("成功"); Debug.WriteLine(newObj1); else /Debu

16、g.WriteLine("失败"); Debug.WriteLine(newObj1"error_code".Value+":"+newObj1"reason".Value); /2.上海期货交易所 string 2 = "web:8080/finance/gold/shfuture" var parameters2 = new Dictionary<string, string>(); parameters2.Add("key", appkey);/你申请的ke

17、y parameters2.Add("v" , ""); /JSON格式版本(0或1)默认为0 string result2 = sendPost(2, parameters2, "get"); JsonObject newObj2 = new JsonObject(result2); String errorCode2 = newObj2"error_code".Value; if (errorCode2 = "0") Debug.WriteLine("成功"); Debu

18、g.WriteLine(newObj2); else /Debug.WriteLine("失败"); Debug.WriteLine(newObj2"error_code".Value+":"+newObj2"reason".Value); /3.银行账户黄金 string 3 = "web:8080/finance/gold/bankgold" var parameters3 = new Dictionary<string, string>(); parameters3.Add(&

19、quot;key", appkey);/你申请的key string result3 = sendPost(3, parameters3, "get"); JsonObject newObj3 = new JsonObject(result3); String errorCode3 = newObj3"error_code".Value; if (errorCode3 = "0") Debug.WriteLine("成功"); Debug.WriteLine(newObj3); else /Debug.W

20、riteLine("失败"); Debug.WriteLine(newObj3"error_code".Value+":"+newObj3"reason".Value); / <summary> / Http (GET/POST) / </summary> / <param name="">请求</param> / <param name="parameters">请求参数</param> / <p

21、aram name="method">请求方法</param> / <returns>响应内容</returns> static string sendPost(string , IDictionary<string, string> parameters, string method) if (method.ToLower() = "post") HttpWebRequest req = null; HttpWebResponse rsp = null; System.IO.Stream reqSt

22、ream = null; try req = (HttpWebRequest)WebRequest.Create(); req.Method = method; req.KeepAlive = false; req.ProtocolVersion = HttpVersion.Version10; req.Timeout = 5000; req.ContentType = "application/x-www-form-encoded;charset=utf-8" byte postData = Encoding.UTF8.GetBytes(BuildQuery(parame

23、ters, "utf8"); reqStream = req.GetRequestStream(); reqStream.Write(postData, 0, postData.Length); rsp = (HttpWebResponse)req.GetResponse(); Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet); return GetResponseAsString(rsp, encoding); catch (Exception ex) return ex.Message; finally

24、 if (reqStream != null) reqStream.Close(); if (rsp != null) rsp.Close(); else /创建请求 HttpWebRequest request = (HttpWebRequest)WebRequest.Create( + "?" + BuildQuery(parameters, "utf8"); /GET请求 request.Method = "GET" request.ReadWriteTimeout = 5000; request.ContentType = &

25、quot;text/html;charset=UTF-8" HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream myResponseStream = response.GetResponseStream(); StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"); /返回内容 string retString = myStreamRea

26、der.ReadToEnd(); return retString; / <summary> / 组装普通文本请求参数。 / </summary> / <param name="parameters">Key-Value形式请求参数字典</param> / <returns>编码后的请求数据</returns> static string BuildQuery(IDictionary<string, string> parameters, string encode) StringBuild

27、er postData = new StringBuilder(); bool hasParam = false; IEnumerator<KeyValuePair<string, string>> dem = parameters.GetEnumerator(); while (dem.MoveNext() string name = dem.Current.Key; string value = dem.Current.Value; / 忽略参数名或参数值为空的参数 if (!string.IsNullOrEmpty(name)/&& !string

28、.IsNullOrEmpty(value) if (hasParam) postData.Append("&"); postData.Append(name); postData.Append("="); if (encode = "gb2312") postData.Append(HttpUtility.Encode(value, Encoding.GetEncoding("gb2312"); else if (encode = "utf8") postData.Append(Http

29、Utility.Encode(value, Encoding.UTF8); else postData.Append(value); hasParam = true; return postData.ToString(); / <summary> / 把响应流转换为文本。 / </summary> / <param name="rsp">响应流对象</param> / <param name="encoding">编码方式</param> / <returns>响应文本&

30、lt;/returns> static string GetResponseAsString(HttpWebResponse rsp, Encoding encoding) System.IO.Stream stream = null; StreamReader reader = null; try / 以字符流的方式读取HTTP响应 stream = rsp.GetResponseStream(); reader = new StreamReader(stream, encoding); return reader.ReadToEnd(); finally / 释放资源 if (rea

31、der != null) reader.Close(); if (stream != null) stream.Close(); if (rsp != null) rsp.Close(); 代码 PHP代码 /* * c远程传输工具 */public function post_c($,$body,$header,$type='POST') $ch = c_init(); c_setopt($ch,COPT_,$); c_setopt($ch,COPT_HEADER,0);/0只要正文 c_setopt($ch,COPT_TIMEOUT,5);/设置超时时间 c_setopt(

32、$ch,COPT_CONNECTTIMEOUT,5); /将c_exec()获取的信息以文件流的形式返回，而不是直接输出。 c_setopt($ch,COPT_RETURNTRANSFER,1); /增加header头信息 / array_push($header,'Accept:application/json'); / array_push($header,'Content-Type:application/json'); / array_push($header,'http:multipart/form-data'); if(count($

33、body)>0) c_setopt($ch,COPT_POSTFIELDS,$body); if(count($header)>0) c_setopt($ch,COPT_HTTPHEADER,$header); /设置上传文件相关 c_setopt($ch,COPT_FOLLOWLOCATION,true); c_setopt($ch,COPT_MAXREDIRS,3);/递归 c_setopt($ch,COPT_SSL_VERIFYPEER,false);/ 对认证证书来源的检查 c_setopt($ch,COPT_SSL_VERIFYHOST,0);/ 从证书中检查SSL加密算

34、法 switch ($type) case 'GET': c_setopt($ch,COPT_HTTPGET,1); break; case 'POST': c_setopt($ch,COPT_POST,1); break; case 'PUT': c_setopt($ch,COPT_CUSTOMREQUEST,'PUT'); break; case 'DELETE': c_setopt($ch,COPT_CUSTOMREQUEST,'DELETE'); break; /上传文件相关设置 c_set

35、opt($ch,COPT_ENCODING,'gzip'); c_setopt($ch,COPT_USERAGENT,'SSTS Browser/1.0'); c_setopt($ch,COPT_USERAGENT,'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)');/ 模拟用户使用的浏览器 if(c_errno($ch) return c_error($ch); $content = c_exec($ch); c_close($ch);/关闭c资源，并且释放系统资

36、源 $result = json_decode($content,true); if(!empty($result) return $result; else return $content; 代码 C/C+代码 /*编译指令$ /opt/sybase/OCS-16_0/bin/cpre64 -m teststu.cp$ cc -m64 -g -DSYB_LP64 -I. -I/opt/sybase/OCS-16_0/include teststu.c /opt/sybase/OCS-16_0/include/sybesql.c -L/opt/sybase/OCS-16_0/lib -lsyb

37、ct64 -lsybtcl64 -lsybcs64 -lsybcomn64 -lsybintl64 -lsybunic64 -rdynamic -ldl -lnsl -lm -o teststu*/#include <stdio.h> /*建立通讯区域*/EXEC SQL INCLUDE SQLCA;/* * These tokens must be declared in a declare section* because they are used in declare sections below.*/EXEC SQL BEGIN DECLARE SECTION;#defi

38、ne TYPESIZE 13#define TIDSIZE 6EXEC SQL END DECLARE SECTION; #define EOLN '0'/* * Forward declarations of the error and message handlers and* other subroutines called from main().*/void error_handler();void warning_handler(); intmain(int argc, char *argv)/*声明宿主变量*/ EXEC SQL BEGIN DECLARE SEC

39、TION; /* storage for login name and password. */ char username30; char sname30; char password30; char server30; EXEC SQL END DECLARE SECTION;/*错误处理*/ EXEC SQL WHENEVER SQLERROR CALL error_handler(); EXEC SQL WHENEVER SQLWARNING CALL warning_handler(); EXEC SQL WHENEVER NOT FOUND CONTINUE;/*连接到 SQL S

40、ERVER 服务器*/ /* * Copy the user name and password defined in sybsqlex.h to * the variables declared for them in the declare section. */ strcpy(username, "mymotif"); strcpy(password, "wxwpxh"); strcpy(server, "MYMOTIFVOSTRO145480"); EXEC SQL CONNECT :username IDENTIFIED B

41、Y :password using :server; EXEC SQL USE testdb; EXEC SQL DECLARE c1 CURSOR FOR SELECT SNAME FROM STUDENT; EXEC SQL OPEN c1; printf("name in table studentn"); do EXEC SQL FETCH c1 INTO :sname; if (sqlca.sqlcode != 0) break; printf( "student name = %sn", sname ); while ( 1 ); EXEC

42、SQL CLOSE c1; return(0); /*错误处理程序*/* void error_handler()* * Displays error codes and numbers from the SQLCA and exits with* an ERREXIT status. */voiderror_handler(void) fprintf(stderr, "n* SQLCODE=(%ld)", sqlca.sqlcode); if (sqlca.sqlerrm.sqlerrml) fprintf(stderr, "n* ASE Error "

43、;); fprintf(stderr, "n* %s", sqlca.sqlerrm.sqlerrmc); fprintf(stderr, "nn"); exit(-1); /* * void warning_handler()* * Displays warning messages.*/voidwarning_handler(void) if (sqlca.sqlwarn1 = 'W') fprintf(stderr, "n* Data truncated.n"); if (sqlca.sqlwarn3 = 

44、9;W') fprintf(stderr, "n* Insufficient host variables to store results.n"); return;代码 Log4j配置 <!- 日志jar -> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </dependency>导入这个包,会引入下面两个jar<!-spring 的基本jar包 ->

45、<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> </dependency> <!- commons-login是必须的,而且没有依赖,是独立的包 -> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging-api<

46、;/artifactId> <version>1.1</version> </dependency><dependency><!- transactionManager实务管理的时候,需要这个jar包 -> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId></dependency><dependency> <!-当spring-config.xml文件中配置<aop:aspect >需要加入此包 -> <groupId>org.aspectj</groupId> &l