我无法在javaspringboot中使用gzip压缩响应

vyu0f0g1  于 2021-07-11  发布在  Java
关注(0)|答案(0)|浏览(251)

这是我无法压缩响应的代码。我只想压缩特定的端点响应。我用的是Spring Boot和maven。
压缩.java

package com.test.annotations;
import javax.ws.rs.NameBinding;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

@NameBinding
@Retention(RetentionPolicy.RUNTIME)
public @interface Compress {
}

gzipinterceptor.java文件

import com.test.annotations.Compress;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.WriterInterceptor;
import javax.ws.rs.ext.WriterInterceptorContext;
import java.io.IOException;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;

@Provider
@Compress
public class GZIPInterceptor implements WriterInterceptor {
    @Override
    public void aroundWriteTo(WriterInterceptorContext writerInterceptorContext) throws IOException, WebApplicationException {
        MultivaluedMap<String,Object> headers = writerInterceptorContext.getHeaders();
        headers.add("Content-Encoding", "gzip");
        final OutputStream outputStream = writerInterceptorContext.getOutputStream();
        writerInterceptorContext.setOutputStream(new GZIPOutputStream(outputStream));
        writerInterceptorContext.proceed();
    }
}

REST控制器:

@RestController
@RequestMapping(path = "/api/v1")
public class TestCompressController
{
    @GetMapping("/compress")
    @Compress
    public String getLongString()
    {
        return "Testing with compression.";
    }
    @GetMapping("/no_compress")
    public String getLongString()
    {
        return "Testing without compression.";
    }
}

应用程序属性:

server.compression.enabled=true
server.compression.min-response-size=0
server.compression.mime-types=application/pdf,text/html,application/json

提前谢谢。

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