QT中对BSON的处理
QT551中对BSON的处理：
http://api.mongodb.org/libbson/current/
http://api.mongodb.org/libbson/
BSON C 学习笔记:http://blog.csdn.net/pk124729136/article/details/41555659
http://blog.csdn.net/mafuli007/article/details/7317258
bson-compat.h 中要更改一句：
//# include
不然会出现类似 1>C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\winsock2.h(2370): error C2375: “WSAAsyncGetServByPort”: 重定义；不同的链接
1> C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\winsock.h(901) : 参见“WSAAsyncGetServByPort”的声明 的编译错误
# include
libbson 下载： http://api.mongodb.org/libbson/1.2.0/installing.html#build-yourself 里面有下载页面或者 从 CSDN的资源页：http://download.csdn.net/detail/ljt350740378/9457703
下载下来后，先解压到当前文件夹，然后用CMAKE来生成VS2010的工程 （CMAKE：下载地址 http://cmake.org/ 或者从 CSDN的资源页：http://download.csdn.net/detail/ljt350740378/9457715）
用CMAKE 源码路径 ： D:/softexe/libbson-1.2.2 目标路径： D:/softexe/libbson-1.2.2/vs2010
1. bson_shared这个工程生成了 libbson-1.0.dll 把这个DLL放到EXE同级目录下面。
2. bson_static 这个工程生成了 libbson-1.0.lib 把这个lib链接 到你的工程里面。 --- 这2个工程还有 test-libbson 就是我们关心的内容，其它 的不用关心，也没有什么用。
3. 把 D:\softexe\libbson-1.2.2\src\bson 里面的H文件还有 D:\softexe\libbson-1.2.2\vs2010\src\bson 下面的 H文件添加到你的工程里面
4. 在工程源码中 #include "includeFiles/BSON/include/bson.h"
5. 使用的时候的示例代码：
// 读取 .xml 同级目录下面的其它 文件，路径为 m_resPath,并把值存放到MAP中
void readAllFile(string &filename)
{
#if 1
m_fileMap.clear();
QDir dir(filename.c_str());
// QStringList filters;
// filters << "*.xml";
// dir.setNameFilters(filters);
QStringList files=dir.entryList(QDir::Filter::Files,
QDir::SortFlag::NoSort);
int fileCnt = files.size();
//qDebug()<<"fileCnt"<
foreach(QString str,files)
{
QString sFilePath = dir.absoluteFilePath(str);
//qDebug()<<"fileCnt"<
QByteArray qba=sFilePath.toLocal8Bit();
string _Filename=qba.toStdString();
FILE *pFile = fopen(_Filename.c_str(),"r");
if(pFile==NULL)
{
//fclose(pFile);
continue;
}
fseek(pFile,0,SEEK_END);
int len = ftell(pFile);
rewind(pFile);
char* ch = (char*)malloc(sizeof(char)* (len)); //分配内存，多一个字节
memset(ch,0,(len)); //清0
fread(ch,1,len,pFile); //读取文件
fclose(pFile);
ByteArray bades;
for(int i=0;i<len;i++)
{
bades.push_back((::Ice::Byte)ch[i]);
}
free(ch);
m_fileMap.insert(str, bades);
}
#endif
}
void convertAllFileToBsonArray(QMap<QString, ByteArray> &infileByte,ByteArray &outba)
{
#if 1
QList<QString> ks = infileByte.keys();
QList<ByteArray> kv=infileByte.values();
int mapLen=infileByte.size();
bson_t * AllBson = bson_new ();
bson_init (AllBson);
bool bTest;
for(int i=0;i<mapLen;i++)
{
QString strKey=ks[i];
int valueLen=kv[i].size();
bson_subtype_t subtype=bson_subtype_t::BSON_SUBTYPE_BINARY;
BSON_APPEND_BINARY(AllBson,(const char*)(strKey.toStdString().c_str())
,subtype,(const uint8_t*)(kv[i].data()),valueLen);
}
int len=AllBson->len;//12761703 12761590
const uint8_t * pbsnData=bson_get_data (AllBson);//获取 到所有的数据
outba.clear();
for(int i=0;i<len;i++)
{
outba.push_back((::Ice::Byte)pbsnData[i]);
}
bson_destroy(AllBson);
#endif
}
逆向解析：
void convertByteArrayToBson(ByteArray& inba,int &result, QString &strMsg)
{
int indata_len = inba.size();
qDebug() <<" after indata_len ="<<indata_len;
uint8_t * psrcData;
psrcData=( uint8_t *)malloc(indata_len);
for(int i=0;i<indata_len;i++)
{psrcData[i]=(uint8_t)(inba.at(i));}
bson_t * AllBson = bson_new ();
bson_init (AllBson);
bool binit =bson_init_static (AllBson,psrcData,indata_len);
//AllBson = bson_new_from_data (psrcData,indata_len);
if(binit==true)
{
//QString sstest = "icebox.bat";
//const char *key=sstest.toStdString().c_str();
//bool bin = bson_has_field (AllBson,key);
uint32_t allbsonSize =bson_count_keys(AllBson);
qDebug() <<" after allbsonSize ="<<allbsonSize;
// for test b
bson_iter_t iter;
BSON_ASSERT (AllBson);
if (bson_iter_init (&iter, AllBson))
{
//iter.key
while (bson_iter_next (&iter))
{
qDebug() <<" hello now begin =";
const char * ppkey = bson_iter_key (&iter);
//(const char *)(iter->raw + iter->key)
QString skeyStr(ppkey);
qDebug() <<" ppkey ="<<skeyStr<<"skeyStr.length()"<<skeyStr.length();
//bool bfind1 = bson_iter_find (iter,ppkey); --- 此句一有，会改变ITER的位置，所以不能有这句
//qDebug() <<" ppkey bfind1 ="<
//const char * ppkey1 = "ConfigItem.xml";
//bool bfind2 = bson_iter_find (iter,ppkey1);
//qDebug() <<" ppkey bfind2 ="<
//qDebug() <<" iter.len ="<len;
//qDebug() <<" iter.type ="<type;
//qDebug() <<" iter.key ="<key;
//qDebug() <<" iter.key ="<
const bson_value_t * pv = bson_iter_value(&iter);
if(pv->value_type == BSON_TYPE_BINARY)
{
int dataLen = pv->value.v_binary.data_len;
uint8_t *pdata = pv->value.v_binary.data;// unsigned char
char *cData=new char[dataLen];
memset(cData,0,sizeof(cData));
for(int u=0;u<dataLen;u++)
{
cData[u]=(char)(pdata[u]);
}
//memcpy(cData,pdata,sizeof(cData));
QString strData(cData);
delete cData;
qDebug() <<" ppvalue="<<strData<<"ppvalue.length()"<<dataLen;
}
}
}
// for test e
int tt;
}
free(psrcData);
bson_destroy(AllBson);
}
void convertByteArrayToBson(ByteArray& inba,int &result, QString &strMsg)
{
result = -1;
strMsg="";
int indata_len = inba.size();
//qDebug() <<" after indata_len ="<
uint8_t * psrcData;
psrcData=( uint8_t *)malloc(indata_len);
for(int i=0;i<indata_len;i++)
{psrcData[i]=(uint8_t)(inba.at(i));}
bson_t * AllBson = bson_new ();
bson_init (AllBson);
bool binit =bson_init_static (AllBson,psrcData,indata_len);
//AllBson = bson_new_from_data (psrcData,indata_len);
if(binit==true)
{
uint32_t allbsonSize =bson_count_keys(AllBson);
//qDebug() <<" after allbsonSize ="<
bson_iter_t iter;
BSON_ASSERT (AllBson);
if (bson_iter_init (&iter, AllBson))
{
while (bson_iter_next (&iter))
{
//qDebug() <<" hello now begin =";
const char * ppkey = bson_iter_key (&iter);
QString skeyStr(ppkey);
//qDebug() <<" ppkey ="<
const bson_value_t * pv = bson_iter_value(&iter);
if(pv->value_type == BSON_TYPE_UTF8)
{
int dataLen = pv->value.v_utf8.len;
uint32_t outDataLen=-1;
const char * ppv = (char *)bson_iter_utf8(&iter,&outDataLen);
string sppv(ppv);
QString smyValue(sppv.c_str());
if(skeyStr=="result")
{
bool ok;
uint ree = smyValue.toUInt(&ok, 10);
if(ok==true)
result=ree;
}
if(skeyStr=="message")
{
strMsg=smyValue;
}
//qDebug() <<" skeyStr="<
}
}
}
// for test e
int tt;
}
free(psrcData);
bson_destroy(AllBson);
}