文件上传之跨服务器上传代码
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2022-06-02 14:12:47
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文件上传之跨服务器上传代码
1.在index.jsp编写如下代码:
<%--
Created by IntelliJ IDEA.
User: Adair
Date: 2020/7/8 0008
Time: 10:18
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>文件上传</title>
</head>
<body>
<h3>跨服务器文件上传</h3>
<form action="/file/fileupload" method="post" enctype="multipart/form-data">
选择文件:<input type="file" name="upload" /><br/>
<input type="submit" value="上传" />
</form>
</body>
</html>
2.创建文件上传控制器类控制器类的代码如下:
package com.txw.controller;
import com.sun.jersey.api.client.Client;
import com.sun.jersey.api.client.WebResource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import java.util.UUID;
@Controller
@RequestMapping("/file")
public class FileController {
/**
* 跨服务器文件上传
* @return
*/
@RequestMapping("/fileupload")
public String fileuoload(MultipartFile upload) throws Exception {
System.out.println("跨服务器文件上传...");
// 定义上传文件服务器路径
String path = "http://localhost:9090/uploads/";
// 说明上传文件项
// 获取上传文件的名称
String filename = upload.getOriginalFilename();
// 把文件的名称设置唯一值,uuid
String uuid = UUID.randomUUID().toString().replace("-", "");
filename = uuid+"_"+filename;
// 创建客户端的对象
Client client = Client.create();
// 和图片服务器进行连接
WebResource webResource = client.resource(path + filename);
// 上传文件
webResource.put(upload.getBytes());
return "success";
}
}
3.需要用到依赖jar包的代码如下:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.txw</groupId>
<artifactId>springmvc_day02_02_fileupload</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>springmvc_day02_02_fileupload Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<spring.version>5.0.2.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-core</artifactId>
<version>1.18.1</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.18.1</version>
</dependency>
</dependencies>
<build>
<finalName>springmvc_day02_02_fileupload</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.7.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
4.使用flieupload服务运行结果如图所示:
5.使用Tomcat服务运行结果如图所示:
6.通过浏览器访问http://localhost:8080/如图所示:
7.点击上传会跳转如图所示的界面:
8.控制台打印结果如图所示:
9.找到本地F:\workspace\fileuploadserver\target\fileuploadserver\uploads如图所示:
10.如果出现如图所示的错误:
需要在D:\apache-tomcat-8.5.31\conf目录下web.xml如图所示:
打开web.xml找servlet并配置如图所示的代码:保存即可。
代码如下:
<init-param>
<param-name>readonly</param-name>
<param-value>false</param-value>
</init-param>
11.如果页面抛出404的错误,如图所示:
需要在另外一个存储文件的服务进行配置服务如图所示:
重写部署项目就不会报以上的错误!