浏览器展示图片（非下载）- java

最新推荐文章于 2023-06-30 01:25:05 发布

转载最新推荐文章于 2023-06-30 01:25:05 发布 · 324 阅读

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原文链接：http://www.cnblogs.com/kevinfuture/p/7738110.html

文章标签：

#java #测试 #运维

本文介绍了一个用于展示静态资源的Java类ResourceViewResult，该类继承自ActionResult，主要用于处理页面静态资源的请求，通过读取ServletContext资源并将其写入到HttpServletResponse中。

package com.bj58.usdt.mobi.infolist.model;

import com.bj58.wf.mvc.ActionResult;
import com.bj58.wf.mvc.BeatContext;
import com.bj58.wf.mvc.MvcConstants;
import org.apache.commons.lang.StringUtils;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.Set;

/**

静态资源展示（页面静态资源nginx跳转，为防止本地报错）

@author
*/
public class ResourceViewResult extends ActionResult {

private String contentType;
private String path;

public ResourceViewResult(String path) {
this.path = path;
}
public ResourceViewResult(String path,String contentType) {
this.path = path;
this.contentType = contentType;
}

@Override
public void render(BeatContext beat) throws Exception {
/
* beat.getResponse().addHeader("Content-Length",""+512);beat.getResponse().setContentType("image/"+"png");
* /

 beat.getResponse().setContentType("text/html;charset=UTF-8");
 if(StringUtils.isNotEmpty(contentType)){
     beat.getResponse().setContentType(contentType);
 }

 InputStream inputStream = beat.getServletContext().getResourceAsStream(path);
 OutputStream outputStream = beat.getResponse().getOutputStream();

 byte[] buffer = new byte[1024];
 int len = -1;
 while((len = inputStream.read(buffer))!=-1){
     outputStream.write(buffer,0,len);
     outputStream.flush();
 }
 outputStream.close();
 inputStream.close();

}
}

转载于:https://www.cnblogs.com/kevinfuture/p/7738110.html