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83 lines
2.6 KiB
83 lines
2.6 KiB
#include "leveldb/db.h"
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#include "leveldb/my_leveldb.h"
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#include <iostream>
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using namespace std;
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using namespace leveldb;
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int main() {
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Options op;
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op.create_if_missing = true;
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MyLevelDB db(op, "testMyDB");
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//序列化测试
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std::string res1;
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FieldArray fields1 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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db.SerializeValue(fields1,res1);
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std::cout << "序列化测试结果：" << std::endl << res1 << std::endl;
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//反序列化测试
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FieldArray fields2;
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db.ParseValue(res1,fields2);
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std::cout << "反序列化测试结果：" << std::endl ;
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for (int i = 0; i < fields2.size(); i++) {
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std::cout << fields2[i].first << ":" << fields2[i].second << std::endl;
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}
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//字段存储
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std::cout << "字段存储和查找结果：" << std::endl;
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std::string key2 = "k_1";
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std::string key3 = "k_2";
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std::string key4 = "k_3";
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FieldArray field2 = {{"name", "Customer#000000001"},
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{"address", "IVhzIApeRb"},
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{"phone", "25-989-741-2988"}};
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FieldArray field3 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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FieldArray field4 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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db.PutWithFields(WriteOptions(), key2, field2);
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db.PutWithFields(WriteOptions(), key3, field3);
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db.PutWithFields(WriteOptions(), key4, field4);
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//字段查找
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FieldArray value_ret;
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std::vector<std::string> v;
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db.FindKeysByField(ReadOptions(), field2[1], &v);
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for (auto s : v) std::cout << s << "\n";
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//创建索引
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WriteOptions writeOptions;
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ReadOptions readOptions;
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Options options;
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options.create_if_missing = true;
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auto db1 = new MyLevelDB(options, "testdb2");
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db1->CreateIndexOnField("address");
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std::string key8 = "k_8";
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std::string key9 = "k_9";
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FieldArray fields8 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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FieldArray fields9 = {{"name", "Customer#000000001"},
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{"address", "IVhzIApeRb"},
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{"phone", "25-989-741-2988"}};
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FieldArray fields10 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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FieldArray fields11 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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FieldArray fields12 = {
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{"name", "Customer#000000001"}, {"address", "abc"}, {"phone", "def"}};
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Field query = {"address", "abc"};
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db1->PutWithFields(WriteOptions(), key8, fields8);
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db1->PutWithFields(WriteOptions(), key9, fields9);
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std::cout << "索引存储与查找：" << std::endl;
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std::vector<std::string> keys;
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db1->QueryByIndex(readOptions, query,keys);
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for (int i = 0; i < keys.size();i++) {
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std::cout << keys[i] << std::endl;
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}
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return 0;
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}
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