ngx.md5 ------- **语法:** *digest = ngx.md5(str)* **环境:** *set_by_lua*, rewrite_by_lua*, access_by_lua*, content_by_lua*, header_filter_by_lua*, body_filter_by_lua*, log_by_lua*, ngx.timer.** 通过 `MD5` 计算 `str` 字符串返回十六进制的数据。 举一个例子, ```nginx location = /md5 { content_by_lua 'ngx.say(ngx.md5("hello"))'; } ``` 将会输出 5d41402abc4b2a76b9719d911017c592 如果需要返回二进制数据请看 [ngx.md5_bin](ngxmd5_bin.md) 方法。 [Back to TOC](#nginx-api-for-lua) > English source: **syntax:** *digest = ngx.md5(str)* **context:** *set_by_lua*, rewrite_by_lua*, access_by_lua*, content_by_lua*, header_filter_by_lua*, body_filter_by_lua*, log_by_lua*, ngx.timer.** Returns the hexadecimal representation of the MD5 digest of the `str` argument. For example, ```nginx location = /md5 { content_by_lua 'ngx.say(ngx.md5("hello"))'; } ``` yields the output 5d41402abc4b2a76b9719d911017c592 See [ngx.md5_bin](#ngxmd5_bin) if the raw binary MD5 digest is required.