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Java > Learn Java > what is the use of request get parameter map in servlet...
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what is the use of request get parameter map in servlet with example

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Java,J2EE,Spring,Webservices,Hibernate,Cloud And Android Expertise

All the form data will be stored in the form of Map with key value pair. This Map object will be returned from the getParameterMap().
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Java Trainer

Map of all input elements of form of Html can be retrieved with getParameterMap() method and it is very rarely used. Map requestParams = request.getParameterMap();
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Java/J2EE/SFDC Corporate Trainer

Request get Parameter is the method which is used to handle form data and the return type is String and we need to convert String data to required data using parse methods.
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Request get Parameter is the method which is used to handle form data and the return type is String and we need to convert String data to required data using parse methods.
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Trainer

request.getParamter is a map which contains all the values in the form. The key is the component name and value is what user entered.
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5+ years of experience in computer science with c++ for class 11th and 12th , java, spring mvc, angular.js for MCA, BCA, 12th, B.tech. Working as Team leader in IT company

ServletRequest's getParameterMap() method is used to obtain the java.util.Map of all request parameters i.e. all input element values of html form. getParameterMap() methods signature is Map getParameterMap() method returns java.util.Map parameter names as key and parameter values as array...
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ServletRequest's getParameterMap() method is used to obtain the java.util.Map of all request parameters i.e. all input element values of html form. getParameterMap() methods signature is Map getParameterMap() method returns java.util.Map parameter names as key and parameter values as array of String read less
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Java Trainer

It is used for selecting more than one value from html page like "language known" one can have multiple option this regard .In this case getrequestmap() is usefull
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getParameterMap method: ServletRequest’s getParameterMap() method is used to obtain the java.util.Map of all request parameters i.e. all input element values of html form. getParameterMap() Method signature is: Map getParameterMap() Returns a java.util.Map of the parameters of this request. Request...
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getParameterMap method: ServletRequest’s getParameterMap() method is used to obtain the java.util.Map of all request parameters i.e. all input element values of html form. getParameterMap() Method signature is: Map getParameterMap() Returns a java.util.Map of the parameters of this request. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data. Returns: an immutable java.util.Map containing parameter names as keys and parameter values as map values. The keys in the parameter map are of type String. The values in the parameter map are of type String array. For more details and good examples pls. find the useful weblinks: http://www.javatutorials.co.in/servlet-getparametermap-example/ http://docs.oracle.com/javaee/5/api/javax/servlet/ServletRequest.html https://tomcat.apache.org/tomcat-5.5-doc/servletapi/javax/servlet/ServletRequestWrapper.html read less
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Java Professional

Syntax: java.util.Map m = request.getParameterMap(); 1. getParameterMap() method always returns Map object. 2. input parameter names and their values are in the form of key and value pairs. 3. getParameter() can be used for only single value returned against parameter name, what if in case you...
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Syntax: java.util.Map m = request.getParameterMap(); 1. getParameterMap() method always returns Map object. 2. input parameter names and their values are in the form of key and value pairs. 3. getParameter() can be used for only single value returned against parameter name, what if in case you have multiple values for perticular parameter name. Then getParameterMap() come into picture. you can get multiple values for a paramater name. read less
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IT Professional Trainer working with a reputed Institute. Headquarters: Hyderabad

The use of request get parameter map in servlet - getParameterMap() method is used to obtain the java.util.Map of all request parameters i.e. all input element values of html form. getParameterMap() methods.returns java.util.Map parameter names as key and parameter values as array of String.
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