发生ruby异常：nil:nilclass的未定义方法“split”

falq053o 于 2021-09-29 发布在 Java

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我在logstash有麻烦。我编写了以下代码：

ruby {
        code => 'separated = event.get("[request_url]").split("/")
                 separated.each_index {|x|
                         temp = "P" + x.to_s
                         event.set(temp,  separated[x])}'
    }

我得到了以下错误：

[2021-07-26T16:27:37,135][ERROR][logstash.filters.ruby    ][main][23b8bf19dac851a85d8c4d86162422f06362d00bf13b156291eea5b597c7f7ec] Ruby exception occurred: undefined method `split' for nil:NilClass {:class=>"NoMethodError", :backtrace=>["(ruby filter code):2:in `block in filter_method'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-filter-ruby-3.1.7/lib/logstash/filters/ruby.rb:93:in `inline_script'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-filter-ruby-3.1.7/lib/logstash/filters/ruby.rb:86:in `filter'", "/usr/share/logstash/logstash-core/lib/logstash/filters/base.rb:159:in `do_filter'", "/usr/share/logstash/logstash-core/lib/logstash/filters/base.rb:178:in `block in multi_filter'", "org/jruby/RubyArray.java:1809:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/filters/base.rb:175:in `multi_filter'", "org/logstash/config/ir/compiler/AbstractFilterDelegatorExt.java:134:in `multi_filter'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:295:in `block in start_workers'"]}

我不知道问题出在哪里！有人能帮我吗？

logstash ruby

来源：https://stackoverflow.com/questions/68529304/ruby-exception-occurred-undefined-method-split-for-nilnilclass

1条答案

按热度按时间

7kjnsjlb1#

我应该在使用它之前测试这个值。因此，我将代码更改为：

ruby {
        code => 'urls = event.get("[request_url]")
                 if urls
                        separated = urls.split("/")
                        if separated
                                separated.each_index {|x|
                                        temp = "P" + x.to_s
                                        event.set(temp,  separated[x])
                                }
                        end
                 end'
    }

错误被修正了。

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发生ruby异常：nil:nilclass的未定义方法“split”

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