Chinese encoding Settings and action methods return values

Table of Contents

ChineseEncoding Settings

Test Chinese encoding filter

The return value of the action method

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Chinese encoding settings

encodeorg.springframework.web.filter.CharacterEncodingFilterencodingUTF-8forceRequestEncodingtrueforceResponseEncodingtrueencode/*

Test Chinese encoding filter

Change all to post, and then submit!

The return value of the action method

The return value includes String, void, basic type, Model, ModelAndView, Map, custom class, custom output content, @ResponseBody decoration, etc.

1)String: The address of the client resource, the prefix and suffix are automatically spliced, and the automatic splicing string can also be shielded, and the returned path can be specified
2)Object: The object in json format is returned, and the object or collection is automaticallyConvert to json, using the Jackson tool for conversion, you must mention the jackson dependency, general user ajax request
3) void: no return value, generally used for ajax request
4) basic data type, useIn ajax request
5) ModelAndView: return data and view objects

Complete the ajax request to access the server

(1) Add jackson dependency

Add Chinese code

(2) Create a new js directory under the webapp directory and add the jQuery function library

(3) Import the function library on the index.jsp page

(4) Add the annotation @ResponseBody to the action to make the ajax request

(5) Add annotation-driven to the springmvc.xml file, which is used to parse the @ResponseBody annotation.

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 com.fasterxml.jackson.corejackson-databind2.9.8