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Below is what I see when I run my code.

Thymeleaf code I am using:

<div>
    <img th:scr="@{/uploads/${image}}" alt="Uploaded Image" width="200px" height="200px"/>
</div>

The directory path starts with the file of my complete Java project... GEM/uploads/(what's stored).

When I run my controller code and I print it, I have a list of String and it prints correctly how the file should be.

@GetMapping("/images")
public String viewUserImages(Model model, User user) {
    user = userService.getCurrentUser();
    if (user != null) {
        List<ImageMetaData> img = imageService.getImagesByUser(user);
        List<String> images = ImageMetaData.filePathStartFromDate(img);
        for (String i : images) {
            System.out.println(i);
        }
        model.addAttribute("images", images); // Add images to the template
    } else {
        model.addAttribute("error", "You need to be logged in to view images.");
    }
    return "imageGallery";
}

my console prints... (which is stored by date and a random generated file name)

2025/02/23/e2ac3061-e334-4dec-9a08-4298475edc08.jpg

2025/02/23/e533359f-e8f1-46a7-90d2-c921299d10dc.jpg

These images are being stored correctly because I can see them in the folders. I tired to update permissions on my mac, but not exactly sure if I did it correctly. Can anyone experienced please help me figure out why my photos aren't displaying?

Below is what I see when I run my code.

Thymeleaf code I am using:

<div>
    <img th:scr="@{/uploads/${image}}" alt="Uploaded Image" width="200px" height="200px"/>
</div>

The directory path starts with the file of my complete Java project... GEM/uploads/(what's stored).

When I run my controller code and I print it, I have a list of String and it prints correctly how the file should be.

@GetMapping("/images")
public String viewUserImages(Model model, User user) {
    user = userService.getCurrentUser();
    if (user != null) {
        List<ImageMetaData> img = imageService.getImagesByUser(user);
        List<String> images = ImageMetaData.filePathStartFromDate(img);
        for (String i : images) {
            System.out.println(i);
        }
        model.addAttribute("images", images); // Add images to the template
    } else {
        model.addAttribute("error", "You need to be logged in to view images.");
    }
    return "imageGallery";
}

my console prints... (which is stored by date and a random generated file name)

2025/02/23/e2ac3061-e334-4dec-9a08-4298475edc08.jpg

2025/02/23/e533359f-e8f1-46a7-90d2-c921299d10dc.jpg

These images are being stored correctly because I can see them in the folders. I tired to update permissions on my mac, but not exactly sure if I did it correctly. Can anyone experienced please help me figure out why my photos aren't displaying?

• java
• spring
• image
• thymeleaf
• rendering

Share Improve this question Follow edited Mar 8 at 18:04 President James K. Polk 42.1k3030 gold badges109109 silver badges145145 bronze badges asked Mar 8 at 4:13 AliciaAlicia 1322 bronze badges

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1 Answer 1

Sorted by: Reset to default 0

Thanks to ChatGPT! It helped but I just summarise our discussion:

1. th:scr -> th:src
2. Path variables in URLs are supposed to be defined using next syntax:

<div>
    <img th:scr="@{/uploads/{image}(image=${image})}" alt="Uploaded Image" width="200px" height="200px"/>
</div>

3. By default files should be under src/main/resources/static

/GEM
│── /src
│    ├── /main
│    │   ├── /java/...
│    │   ├── /resources
│    │   │   ├── /static
│    │   │   │   ├── /uploads
│    │   │   │   │   ├── /2025
│    │   │   │   │   │   ├── /02
│    │   │   │   │   │   │   ├── /23
│    │   │   │   │   │   │   │   ├── e2ac3061-e334-4dec-9a08-4298475edc08.jpg
│    │   │   │   │   │   │   │   ├── e533359f-e8f1-46a7-90d2-c921299d10dc.jpg
│    │   │   ├── /templates
│    │   │   │   ├── imageGallery.html
│    │   ├── /application.properties
│── /target
│── pom.xml

Simple example:

If you have image GEM/src/main/resources/static/image1.jpg then you can access it from Thymeleaf like that:

<img th:scr="@{image1.jpg)}"

If you have image GEM/src/main/resources/static/nestedFolder/image2.jpg then next way works:

<img th:scr="@{nestedFolder/image2.jpg)}"

BUT if you want to have images under project root, something like that:

/GEM
│── /uploads
│    ├── /2025
│    │   ├── /02
│    │   │   ├── /23
│    │   │   │   ├── e2ac3061-e334-4dec-9a08-4298475edc08.jpg
│    │   │   │   ├── e533359f-e8f1-46a7-90d2-c921299d10dc.jpg
│── /src
│    ├── /main
│    │   ├── /java/...
│    │   ├── /resources
│    │   │   ├── /templates
│    │   │   │   ├── imageGallery.html
│    │   ├── /application.properties
│── /target
│── pom.xml

then you should tell it Spring explicitly:

@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        String uploadDir = Paths.get("uploads").toUri().toString();
        registry.addResourceHandler("/uploads/**").addResourceLocations(uploadDir);
    }
}

which means:

"If a browser requests http://localhost/uploads/**, look for this file in the uploads/ folder in the project root (because by default Spring looks for this file in src/main/resources/static/)"

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