-AmaxPostSize=-1 not work, cannot post large content

my start command

java -jar ./webapp-runner.jar -AmaxPostSize=-1 ./target/demopostbigcontent-0.0.1-SNAPSHOT.war

jetbrains http client editor

POST 127.0.0.1:8080/greeting/big-content
Content-Type: text/plain

< ./data.json

###

POST 127.0.0.1:8080/greeting/big-content
Content-Type: text/plain

< ./smalldata.json

data.json 2.6 MB smalldata.json 3k

my code, Spring Boot framework

Greeting.java

public class Greeting {
    private final long id;
    private final String content;

    public Greeting(long id, String content) {
        this.id = id;
        this.content = content;
    }

    public long getId() {
        return id;
    }

    public String getContent() {
        return content;
    }
}

GreetingController.java

import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.atomic.AtomicLong;

@RestController
public class GreetingController {
    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting/big-content")
    public Greeting greetingBigContent(@RequestBody String payload) {
        return new Greeting(counter.incrementAndGet(),
                payload);
    }
}

submit data.json failed

submit smalldata.json success

I tried adjusting many tomcat parameters but none worked, for example

java -jar ./webapp-runner.jar -AmaxPostSize=-1 -AmaxSwallowSize=-1 -AconnectionTimeout=100000 -AmaxSavePostSize=-1 -AmaxParameterCount=-1 ./target/demopostbigcontent-0.0.1-SNAPSHOT.war

How to solve this problem? please help me, thanks

[Malax]

Why can I upload successfully without any error ?

maxPostSize is only used when parsing application/x-www-form-urlencoded payloads. Since you explicitly send a Content-Type: text/plain that restriction has no effect. Omitting -H 'Content-Type: text/plain' in your example returns a 400 (Bad Request) as expected for payloads > 2MiB.

[Malax]

Hello! Since this is an old issue and many things have changed since it was opened I will close it for now. Feel absolutely free to re-open it if it is still relevant so we can work on it! 😃