How to deal with Chinese garbled characters when sending ajax in springmvc

This time I will bring you how to deal with Chinese garbled characters when sending ajax in springmvc. What are the things to pay attention to when sending ajax in springmvc and Chinese garbled characters? The following is a practical case, let’s take a look one time.

Use spingmvc to send a request through ajax in JS and return the data in json format. The Chinese format is correct when taken out from the database, but is it wrong when displayed on the page? ? , after some research, there are several solutions.

I am using sping-web-3.2.2,jar

Method 1:

In @RequestMapping Add produces = "text/html;charset=UTF-8"

@RequestMapping(value = "/configrole", method = RequestMethod.GET, produces = "text/html;charset=UTF-8") 
public @ResponseBody String configrole() { 
 ...... 
}

Method 2:

Because it is set by default in StringHttpMessageConverter

Character set is ISO-8859-1 So get the source code, modify it to UTF-8 and package it into spring-web-3.2.2.jar

public class StringHttpMessageConverter extends AbstractHttpMessageConverter<String> 
{ 
 public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8"); 
 .......... 
}

Method 3:

Modify the parameters of org.springframework.http.MediaType's

construction method, and add configuration to applicationContext-mvc.xml

public MediaType(String type, String subtype, Charset charset) { 
  super(type, subtype, charset); 
}

Xml code

<bean id="stringHttpMessageConverter" 
  class="org.springframework.http.converter.StringHttpMessageConverter"> 
  <property name="supportedMediaTypes"> 
    <list> 
      <bean class="org.springframework.http.MediaType"> 
        <constructor-arg value="text" /> 
        <constructor-arg value="plain" /> 
        <constructor-arg value="UTF-8" /> 
      </bean> 
    </list> 
  </property> 
</bean>

Method 4##org.springframework.http.converter.StringHttpMessageConverter class is A class that handles requests or corresponding

string

, and the default character set is ISO-8859-1, so when there is Chinese in the returned json, garbled characters will appear. There is a List supportedMediaTypes attribute in the parent class of StringHttpMessageConverter, which is used to store the MediaType types that StringHttpMessageConverter supports that need special processing. If the MediaType type that needs to be processed is not in the supportedMediaTypes list, the default character set is used.

Solution, just add the following code to the

configuration file

:

<mvc:annotation-driven>
<mvc:message-converters>
 <bean class="org.springframework.http.converter.StringHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
 <value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>

If you need to handle other MediaType types, you can add other value tags to the list tag

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

What are the ways for Ajax to request async? How to use

Detailed explanation of the use of AJAX’s XMLHttpRequest object

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