Handling FormData in Java

In Java, you can use the following method to receive FormData data:

1. Utilizing the Servlet API:

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // 设置请求编码为UTF-8
    request.setCharacterEncoding("UTF-8");
    
    // 获取FormData数据
    String formDataValue = request.getParameter("formDataKey");
    // 处理FormData数据
    ...
}

1. Utilize the Spring MVC framework.

@PostMapping("/submit")
public String submitForm(@RequestParam("formDataKey") String formDataValue) {
    // 处理FormData数据
    ...
}

1. Utilizing JAX-RS (Java API for RESTful Web Services):

@POST
@Path("/submit")
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response submitForm(@FormParam("formDataKey") String formDataValue) {
    // 处理FormData数据
    ...
}

The formDataKey in the code example above represents the name of a field in FormData, while formDataValue represents the value of that field. Based on the actual scenario, we can use the field names in the form to retrieve their corresponding values for further processing.