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This article is about how SpringBoot uses the external path pictures of the project and how to solve the cross-domain problem of CORS. The editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

Configuration class

Package com.zz.config

Import org.springframework.beans.factory.annotation.Value

Import org.springframework.context.annotation.Configuration

Import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry

Import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter

@ Configuration

Public class WebAppConfig extends WebMvcConfigurerAdapter {

@ Value ("${imagesPath}")

Private String mImagesPath

@ Override

Public void addResourceHandlers (ResourceHandlerRegistry registry) {

If (mImagesPath.equals (") | | mImagesPath.equals (" ${imagesPath} ")) {

String imagesPath = WebAppConfig.class.getClassLoader () .getResource (") .getPath ()

If (imagesPath.indexOf (".jar") > 0) {

ImagesPath = imagesPath.substring (0, imagesPath.indexOf (".jar"))

} else if (imagesPath.indexOf ("classes") > 0) {

ImagesPath = "file:" + imagesPath.substring (0, imagesPath.indexOf ("classes"))

}

ImagesPath = imagesPath.substring (0, imagesPath.lastIndexOf ("/")) + "/ images/"

MImagesPath = imagesPath

}

/ / LoggerFactory.getLogger (WebAppConfig.class) .info ("imagesPath=" + mImagesPath)

Registry.addResourceHandler ("/ images/**") .addResourceLocations (mImagesPath)

/ / TODO Auto-generated method stub

Super.addResourceHandlers (registry)

}

}

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Configuration file sets the outer path address

Application.properties

# # Fax on the picture is the address

ImagesPath=file:/C:/upload/

twelve

Test access image path: http://localhost:9001/core/images/2.jpg

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Copyright notice: this article is the original article of CSDN blogger "bseayin", in accordance with the CC 4.0BY-SA copyright Agreement. Please attach the original source link and this statement for reprint.

Original link: https://blog.csdn.net/h456363/article/details/90547998

The actual storage path of the picture: C:\ upload

SpringBoot2.X

WebMvcConfigurerAdapter in Springboot2 is out of date.

Interface WebMvcConfigurer is recommended.

Package com.cy.config

Import org.springframework.beans.factory.annotation.Value

Import org.springframework.context.annotation.Configuration

Import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry

Import org.springframework.web.servlet.config.annotation.WebMvcConfigurer

@ Configuration

Public class WebAppConfig implements WebMvcConfigurer {

@ Value ("${imagesPath}")

Private String mImagesPath

@ Override

Public void addResourceHandlers (ResourceHandlerRegistry registry) {

If (mImagesPath.equals (") | | mImagesPath.equals (" ${imagesPath} ")) {

String imagesPath = WebAppConfig.class.getClassLoader () .getResource (") .getPath ()

If (imagesPath.indexOf (".jar") > 0) {

ImagesPath = imagesPath.substring (0, imagesPath.indexOf (".jar"))

} else if (imagesPath.indexOf ("classes") > 0) {

ImagesPath = "file:" + imagesPath.substring (0, imagesPath.indexOf ("classes"))

}

ImagesPath = imagesPath.substring (0, imagesPath.lastIndexOf ("/")) + "/ images/"

MImagesPath = imagesPath

}

/ / LoggerFactory.getLogger (WebAppConfig.class) .info ("imagesPath=" + mImagesPath)

Registry.addResourceHandler ("/ images/**") .addResourceLocations (mImagesPath)

/ / TODO Auto-generated method stub

}

}

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CORS unified treatment of cross-domain problems

Package com.zz.config

Import org.springframework.context.annotation.Bean

Import org.springframework.context.annotation.Configuration

Import org.springframework.web.servlet.config.annotation.CorsRegistry

Import org.springframework.web.servlet.config.annotation.WebMvcConfigurer

/ * *

* @ Description: java class function description

* @ Author: Bsea

* @ CreateDate: 2019-10-9 $21:33 $

, /

@ Configuration

Public class CorsConfig {

@ Bean

Public WebMvcConfigurer corsConfigurer () {

Return new WebMvcConfigurer () {

@ Override

Public void addCorsMappings (CorsRegistry registry) {

Registry.addMapping ("/ *")

.allowedOrigins ("*"); / / allow domain name access. If *, it represents all domain names

}

}

}

}

The above is how SpringBoot uses project external path pictures and solves CORS cross-domain problems. The editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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