【发布时间】：2013-06-03 12:29:58
【问题描述】：
我正在尝试对对象进行序列化，然后对其进行反序列化。尽管看起来我写的一切都很好，但在反序列化过程中仍然出现错误。
int main(){
MapAttributes mapAtt(MAP_SIZE,MAP_SIZE);
initMapFromImage("map1.png",&mapAtt);
int prevxMax = mapAtt.prevxMax ;
int prevyMax = mapAtt.prevyMax ;
int prevxMin = mapAtt.prevxMin ;
int prevyMin = mapAtt.prevyMin ;
PixelCoords pose = PixelCoords(mapAtt.robotPose.dx, mapAtt.robotPose.dy);
PixelCoords target = PixelCoords( 2048+250, 2048+250 );
PartitionGraphNodes partitionGraph(&mapAtt);
PartitionGraphNodes partitionGraph2(&mapAtt);
partitionGraph.createIncrementalPartition(pose,target);
if (partitionGraph.nodes.size()!=0){
saveSerializedObject<PartitionGraphNodes(partitionGraph,"partition_graph_marshall");
std::cout << "size= " << partitionGraph.nodes.size() << "\n";
restoreSerializedObject<PartitionGraphNodes>(partitionGraph2,"partition_graph_marshall");
}
else{
std::cout << "RUN FOR YOUR LIVES!!!\n";
}
return 0;
这是我试图让我的对象序列化和反序列化的代码。
序列化和反序列化的函数如下：
template<class T>
void saveSerializedObject(const T &s, const char * filename){
// make an archive
std::ofstream ofs(filename);
boost::archive::text_oarchive oa(ofs);
oa << s;
}
template<class T>
void restoreSerializedObject(T &s, const char * filename)
{
// open the archive
std::ifstream ifs(filename);
if (ifs.good()) {
std::cout << "Coming!!!\n";
boost::archive::text_iarchive ia(ifs);
ia >> s;
} else {
// throw an error or something
assert(false);
}
}
最后，我完全按照 Boost 文档的建议编写了序列化代码，但我仍然收到错误：'boost::archive::archive_exception' 的实例 what(): 输入流错误。你能帮我解决这个问题吗？
编辑：
很清楚，最初我试图序列化 PartitionGraphNodes 类的对象。这就是 PartitionGraphNodes 对象的序列化方式：
#include <boost/serialization/base_object.hpp>
class PartitionGraphNodes: public NodesVector{
private:
std::vector<int> targetNeighbors; //!<Vector holding target neighbors
std::vector<int> robotNeighbors; //!<Vector holding robot neighbors
std::vector<PixelCoords> uniformPartition;
public:
PartitionGraphNodes(MapAttributes* mapAttr);
void createIncrementalPartition(PixelCoords startPos, PixelCoords target);
int insertNodeInPartition(Node currNode);
template<class Archive>
void serialize(Archive & ar, const unsigned int version)
{
// serialize base class information
std::cout << "In partition_serial" << "\n";
ar & boost::serialization::base_object<NodesVector>(*this);
}
};
#include <boost/serialization/vector.hpp>
class NodesVector{
protected:
//~ std::vector<Voronode> nodes;
public:
NodesVector(void){};
std::vector<Node> nodes;
MapAttributes* mapAttributes;
template<class Archive>
void serialize(Archive & ar, const unsigned int version)
{
std::cout << "In nodesVector_serial" << "\n";
ar & nodes;
}
};
#include <boost/serialization/vector.hpp>
class Node{
public:
PixelCoords p; //!< The coordinates of the node
bool visited; //!< True if the node has been visited
unsigned int ID; //!< The node's ID
int parent;
std::vector<PixelCoords> neigh; //!< Vector of the neighbors of the node (coords)
std::vector<unsigned int> neighID; //!< Vector of the neighbors' IDs
std::vector<float> dist; //!< Vector of the distances of the neighbors
Weight w; //!< The node's weight
std::vector<PixelCoords> path;
Node(PixelCoords a) {p=a;}
Node(PixelCoords a,unsigned int IDt) {p=a; ID=IDt;}
Node(void){}
void makeNeighbor(Node &a);
template<class Archive>
void serialize(Archive & ar, const unsigned int version)
{
std::cout << "In nodes_serial" << "\n";
ar & p;
ar & visited;
ar & ID;
ar & parent;
ar & neigh;
ar & neighID;
ar & dist;
ar & w;
}
};
#endif
【问题讨论】：
-
请帮助我们为您提供帮助 - 编写一个最低限度完整的示例来重现该问题。
-
我已经在我的帖子中进行了适当的编辑。我希望现在已经足够清楚了......
标签： c++ serialization boost deserialization