Leveldb Compile and Use

先clone下来

git clone --recurse-submodules https://github.com/google/leveldb.git

再Build

mkdir -p build && cd build
cmake -DCMAKE_BUILD_TYPE=Release .. && cmake --build . && 
cd .. && 
sudo cp build/libleveldb.a /usr/local/lib/ && 
sudo cp -r include/leveldb/ /usr/local/include/

把生成的libleveldb.a加到usr/local/lib中

sudo cp build/libleveldb.a /usr/local/lib/
sudo cp -r include/leveldb/ /usr/local/include/

新建demo

#include <cassert>
#include <iostream>
#include <string>
#include <leveldb/db.h>

int main() {
  leveldb::DB* db;
  leveldb::Options options;
  options.create_if_missing = true;
  leveldb::Status status = leveldb::DB::Open(options, "/tmp/testdb", &db);
  assert(status.ok());

  std::string key = "apple";
  std::string value = "A";
  std::string get;

  leveldb::Status s = db->Put(leveldb::WriteOptions(), key, value);
  
  if (s.ok()) s = db->Get(leveldb::ReadOptions(), key, &get);
  if (s.ok()) std::cout << "读取到的与(key=" << key << ")对应的(value=" << get << ")" << std::endl;
  else std::cout << "读取失败!" << std::endl;

  delete db;

  return 0;
}

编译

g++ -o demo demo.cc -pthread -lleveldb -std=c++11 -lsnappy

标签：Use,Leveldb,Compile,leveldb,build,&&,include,local,usr
来源： https://www.cnblogs.com/attack204/p/16630273.html