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问题 I have a large text file(1.5 Gb) having 100 millions Strings(no duplicate String) and all the Strings are arranged line by line in the file . i want to make a wepapplication in java so that when user give a keyword(Substring) he get the count of All the strings present in the file which contains that keyword. i know one technique LUCENE already..is there any other way to do this.?? i want the result within 3-4 seconds. MY SYSTEM HAS 4GB RAM AND DUAL CORE configuration.... need to do this in

问题 I have a large text file(1.5 Gb) having 100 millions Strings(no duplicate String) and all the Strings are arranged line by line in the file . i want to make a wepapplication in java so that when user give a keyword(Substring) he get the count of All the strings present in the file which contains that keyword. i know one technique LUCENE already..is there any other way to do this.?? i want the result within 3-4 seconds. MY SYSTEM HAS 4GB RAM AND DUAL CORE configuration.... need to do this in

问题 I have a large text file(1.5 Gb) having 100 millions Strings(no duplicate String) and all the Strings are arranged line by line in the file . i want to make a wepapplication in java so that when user give a keyword(Substring) he get the count of All the strings present in the file which contains that keyword. i know one technique LUCENE already..is there any other way to do this.?? i want the result within 3-4 seconds. MY SYSTEM HAS 4GB RAM AND DUAL CORE configuration.... need to do this in

问题 I'm trying to search multiple attributes in XML : <APIS> <API Key="00001"> <field Username="username1" UserPassword="password1" FileName="Filename1.xml"/> <field Username="username2" UserPassword="password2" FileName="Filename2.xml"/> <field Username="username3" UserPassword="password3" FileName="Filename3.xml"/> </API> </APIS> I need to check if in the "field" the Username AND UserPassword values are both what I am comparing with my Dataset values, is there a way where I can check multiple

问题 I'm trying to search multiple attributes in XML : <APIS> <API Key="00001"> <field Username="username1" UserPassword="password1" FileName="Filename1.xml"/> <field Username="username2" UserPassword="password2" FileName="Filename2.xml"/> <field Username="username3" UserPassword="password3" FileName="Filename3.xml"/> </API> </APIS> I need to check if in the "field" the Username AND UserPassword values are both what I am comparing with my Dataset values, is there a way where I can check multiple

问题 Hey I'm working on a Python project that requires I look through a webpage. I want to look through to find a specific text and if it finds the text, then it prints something out. If not, it prints out an error message. I've already tried with different modules such as libxml but I can't figure out how I would do it. Could anybody lend some help? 回答1: You could do something simple like: import urllib2 import re html_content = urllib2.urlopen('http://www.domain.com').read() matches = re.findall

问题 I have several binary files, which are mostly bigger than 10GB . In this files, I want to find patterns with Python , i.e. data between the pattern 0x01 0x02 0x03 and 0xF1 0xF2 0xF3 . My problem: I know how to handle binary data or how I use search algorithms, but due to the size of the files it is very inefficient to read the file completely first. That's why I thought it would be smart to read the file blockwise and search for the pattern inside a block. My goal: I would like to have Python

问题 I'm using a snowball analyzer to stem the titles of multiple documents. Everything works well, but their are some quirks. Example: A search for "valv", "valve", or "valves" returns the same number of results. This makes sense since the snowball analyzer reduces everything down to "valv". I run into problems when using a wildcard. A search for "valve*" or "valves*" does not return any results. Searching for "valv*" works as expected. I understand why this is happening, but I don't know how to

问题 So far I always used EasyGrep for replacing text in multiple files. Unfortunately it is quite slow when a project gets bigger. One thing that seems to be amazingly fast is Ggrep of fugitive.vim that only search my version controlled files. All results are also stored in the quickfix list. How can I use the results of Ggrep for doing a simple replace over all those found files? Is it somehow possible to use %s/foo/bar/cg on all files in the quickfix list or are there any better ways? 回答1:

问题 I have a search form I generated using the filterGrid option in JqGrid. I want to add a JavaScript logic which is invoked before I submit the Search form. I have added a method which is invoked by the beforeSubmit property for the filterGrid. It goes into the method before submitting, but always submits the form regardless of the value returned. I would like the form to not submit if the javascript returns false. Have any of you guys implemented anything like this before. Or is there any othe