将字符串转换为 JSON

Question

我是 javascript 的新手，我正在尝试将 redis-cli INFO 命令输出转换为 JSON。我试图转换为 JSON 的字符串是这样的

    "redis_version:2.4.8\r\nredis_git_sha1:b85ba5fb\r\nredis_git_dirty:0\r\narch_bits:64\r\nmultiplexing_api:kqueue\r\ngcc_version:4.2.1\r\nprocess_id:6403\r\nuptime_in_seconds:963411\r\nuptime_in_days:11\r\nlru_clock:815387\r\nused_cpu_sys:67.32\r\nused_cpu_user:91.89\r\nused_cpu_sys_children:42.23\r\nused_cpu_user_children:132.57\r\nconnected_clients:2\r\nconnected_slaves:1\r\nclient_longest_output_list:0\r\nclient_biggest_input_buf:0\r\nblocked_clients:0\r\nused_memory:162549360\r\nused_memory_human:155.02M\r\nused_memory_rss:147972096\r\nused_memory_peak:191943360\r\nused_memory_peak_human:183.05M\r\nmem_fragmentation_ratio:0.91\r\nmem_allocator:libc\r\nloading:0\r\naof_enabled:1\r\nchanges_since_last_save:1\r\nbgsave_in_progress:1\r\nlast_save_time:1350325258\r\nbgrewriteaof_in_progress:0\r\ntotal_connections_received:187\r\ntotal_commands_processed:269264\r\nexpired_keys:180\r\nevicted_keys:0\r\nkeyspace_hits:202518\r\nkeyspace_misses:11675\r\npubsub_channels:0\r\npubsub_patterns:0\r\nlatest_fork_usec:2198\r\nvm_enabled:0\r\nrole:master\r\naof_current_size:159904546\r\naof_base_size:158667118\r\naof_pending_rewrite:0\r\naof_buffer_length:0\r\naof_pending_bio_fsync:0\r\nslave0:127.0.0.1,62716,online\r\ndb0:keys=356937,expires=0\r\n"

非常感谢任何有关如何将其转换为 JSON 对象的指针。谢谢！

Answer 1

你可以像这样简单地做一些事情：

​var fields = str.split('\r\n'), result = {};
for(var i = 0, len = fields.length; i < len; ++i) {
    var props = fields[i].split(':');
    if(props.length === 2) {           
        result[props[0]] = props[1];
    }
}

console.log(result);​​​​
console.log(JSON.stringify(result));

我在 http://jsfiddle.net/uHtT3/1/ 创建了一个 jsfiddle。

Answer 2

为什么不使用webdis 之类的东西来达到同样的目的？

默认情况下，Webdis 回复是包含单个项目的 JSON 对象，将请求的命令名称映射到 Redis 回复。使用以下 JSON 类型：

Redis string → JSON string (GET, LPOP...)
Redis multi-bulk data → JSON list (LRANGE, SMEMBERS...)
Redis integer → JSON integer (INCR...)
Redis status, error → list [bool, string] (PING, SET...)

?jsonp 查询字符串参数添加了一个可选的包装函数，将回复转换为 JSONP 调用。这使得在 Javascript 应用程序中包含 Webdis 成为可能。

Answer 3

您是否尝试过使用 eval？

eval('[{"'+<yourString>+'"}]');

编辑

eval('({"'+<yourString>+'"})');

其中可以是 json 作为字符串，例如：

"a: 21, b:23"

这对我有用

var yourString = "redis_version:2.4.8\r\nredis_git_sha1:b85ba5fb\r\nredis_git_dirty:0\r\narch_bits:64\r\nmultiplexing_api:kqueue\r\ngcc_version:4.2.1\r\nprocess_id:6403\r\nuptime_in_seconds:963411\r\nuptime_in_days:11\r\nlru_clock:815387\r\nused_cpu_sys:67.32\r\nused_cpu_user:91.89\r\nused_cpu_sys_children:42.23\r\nused_cpu_user_children:132.57\r\nconnected_clients:2\r\nconnected_slaves:1\r\nclient_longest_output_list:0\r\nclient_biggest_input_buf:0\r\nblocked_clients:0\r\nused_memory:162549360\r\nused_memory_human:155.02M\r\nused_memory_rss:147972096\r\nused_memory_peak:191943360\r\nused_memory_peak_human:183.05M\r\nmem_fragmentation_ratio:0.91\r\nmem_allocator:libc\r\nloading:0\r\naof_enabled:1\r\nchanges_since_last_save:1\r\nbgsave_in_progress:1\r\nlast_save_time:1350325258\r\nbgrewriteaof_in_progress:0\r\ntotal_connections_received:187\r\ntotal_commands_processed:269264\r\nexpired_keys:180\r\nevicted_keys:0\r\nkeyspace_hits:202518\r\nkeyspace_misses:11675\r\npubsub_channels:0\r\npubsub_patterns:0\r\nlatest_fork_usec:2198\r\nvm_enabled:0\r\nrole:master\r\naof_current_size:159904546\r\naof_base_size:158667118\r\naof_pending_rewrite:0\r\naof_buffer_length:0\r\naof_pending_bio_fsync:0\r\nslave0:127.0.0.1".replace(/\r\n/g, ",").replace(/:/g, ": '").replace(/,/g, "' ,")+"'";
eval('({'+yourString+'})');

或者如果您想避免使用 eval，请使用 JSON.parse

JSON.parse(yourString);