pom.xml<\/p>\n\n\n\n
<project xmlns=\"http:\/\/maven.apache.org\/POM\/4.0.0\" xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xsi:schemaLocation=\"http:\/\/maven.apache.org\/POM\/4.0.0 http:\/\/maven.apache.org\/maven-v4_0_0.xsd\">\n <modelVersion>4.0.0<\/modelVersion>\n <groupId>top.qaqaq.mvc<\/groupId>\n <artifactId>SpringMVC_demo4<\/artifactId>\n <packaging>war<\/packaging>\n <version>1.0-SNAPSHOT<\/version>\n <name>SpringMVC_demo4 Maven Webapp<\/name>\n <url>http:\/\/maven.apache.org<\/url>\n <dependencies>\n <dependency>\n <groupId>junit<\/groupId>\n <artifactId>junit<\/artifactId>\n <version>3.8.1<\/version>\n <scope>test<\/scope>\n <\/dependency>\n\n <!-- SpringMVC -->\n <dependency>\n <groupId>org.springframework<\/groupId>\n <artifactId>spring-webmvc<\/artifactId>\n <version>5.3.1<\/version>\n <\/dependency>\n <!-- \u65e5\u5fd7 -->\n <dependency>\n <groupId>ch.qos.logback<\/groupId>\n <artifactId>logback-classic<\/artifactId>\n <version>1.2.3<\/version>\n <\/dependency>\n <!-- ServletAPI -->\n <dependency>\n <groupId>javax.servlet<\/groupId>\n <artifactId>javax.servlet-api<\/artifactId>\n <version>3.1.0<\/version>\n <scope>provided<\/scope>\n <\/dependency>\n <!-- Spring5\u548cThymeleaf\u6574\u5408\u5305 -->\n <dependency>\n <groupId>org.thymeleaf<\/groupId>\n <artifactId>thymeleaf-spring5<\/artifactId>\n <version>3.0.12.RELEASE<\/version>\n <\/dependency>\n\n <dependency>\n <groupId>com.fasterxml.jackson.core<\/groupId>\n <artifactId>jackson-databind<\/artifactId>\n <version>2.12.1<\/version>\n <\/dependency>\n\n <dependency>\n <groupId>commons-fileupload<\/groupId>\n <artifactId>commons-fileupload<\/artifactId>\n <version>1.3.1<\/version>\n <\/dependency><\/strong>\n\n <\/dependencies>\n <build>\n <finalName>SpringMVC_demo4<\/finalName>\n <\/build>\n<\/project>\n<\/code><\/pre>\n\n\n\nweb.xml<\/p>\n\n\n\n
<!DOCTYPE web-app PUBLIC\n \"-\/\/Sun Microsystems, Inc.\/\/DTD Web Application 2.3\/\/EN\"\n \"http:\/\/java.sun.com\/dtd\/web-app_2_3.dtd\" >\n\n<web-app>\n <display-name>Archetype Created Web Application<\/display-name>\n\n <!-- \u914d\u7f6e\u7f16\u7801\u8fc7\u6ee4\u5668 -->\n <filter>\n <filter-name>CharacterEncodingFilter<\/filter-name>\n <filter-class>org.springframework.web.filter.CharacterEncodingFilter<\/filter-class>\n <init-param>\n <param-name>encoding<\/param-name>\n <param-value>UTF-8<\/param-value>\n <\/init-param>\n <init-param>\n <param-name>forceResponseEncoding<\/param-name>\n <param-value>true<\/param-value>\n <\/init-param>\n <\/filter>\n <filter-mapping>\n <filter-name>CharacterEncodingFilter<\/filter-name>\n <url-pattern>\/*<\/url-pattern>\n <\/filter-mapping>\n\n <!-- \u914d\u7f6eHiddenHttpMethodFilter -->\n <filter>\n <filter-name>HiddenHttpMethodFilter<\/filter-name>\n <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter<\/filter-class>\n <\/filter>\n <filter-mapping>\n <filter-name>HiddenHttpMethodFilter<\/filter-name>\n <url-pattern>\/*<\/url-pattern>\n <\/filter-mapping>\n\n <!-- \u914d\u7f6espringMVC\u7684\u524d\u7aef\u63a7\u5236\u5668DispatcherServlet -->\n <servlet>\n <servlet-name>DispatcherServlet<\/servlet-name>\n <servlet-class>org.springframework.web.servlet.DispatcherServlet<\/servlet-class>\n <init-param>\n <param-name>contextConfigLocation<\/param-name>\n <param-value>classpath:springMVC.xml<\/param-value>\n <\/init-param>\n <load-on-startup>1<\/load-on-startup>\n <\/servlet>\n <servlet-mapping>\n <servlet-name>DispatcherServlet<\/servlet-name>\n <url-pattern>\/<\/url-pattern>\n <\/servlet-mapping>\n<\/web-app>\n<\/code><\/pre>\n\n\n\nspringMVC.xml<\/h3>\n\n\n\n<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<beans xmlns=\"http:\/\/www.springframework.org\/schema\/beans\"\n xmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\"\n xmlns:context=\"http:\/\/www.springframework.org\/schema\/context\"\n xmlns:mvc=\"http:\/\/www.springframework.org\/schema\/mvc\"\n xsi:schemaLocation=\"http:\/\/www.springframework.org\/schema\/beans http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd http:\/\/www.springframework.org\/schema\/context https:\/\/www.springframework.org\/schema\/context\/spring-context.xsd http:\/\/www.springframework.org\/schema\/mvc https:\/\/www.springframework.org\/schema\/mvc\/spring-mvc.xsd\">\n\n <!--\u626b\u63cf\u7ec4\u4ef6-->\n <context:component-scan base-package=\"top.qaqaq.mvc.controller\"><\/context:component-scan>\n\n <!-- \u914d\u7f6eThymeleaf\u89c6\u56fe\u89e3\u6790\u5668 -->\n <bean id=\"viewResolver\"\n class=\"org.thymeleaf.spring5.view.ThymeleafViewResolver\">\n <property name=\"order\" value=\"1\"\/>\n <property name=\"characterEncoding\" value=\"UTF-8\"\/>\n <property name=\"templateEngine\">\n <bean class=\"org.thymeleaf.spring5.SpringTemplateEngine\">\n <property name=\"templateResolver\">\n <bean class=\"org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver\">\n <!-- \u89c6\u56fe\u524d\u7f00 -->\n <property name=\"prefix\" value=\"\/WEB-INF\/templates\/\"\/>\n <!-- \u89c6\u56fe\u540e\u7f00 -->\n <property name=\"suffix\" value=\".html\"\/>\n <property name=\"templateMode\" value=\"HTML5\"\/>\n <property name=\"characterEncoding\" value=\"UTF-8\" \/>\n <\/bean>\n <\/property>\n <\/bean>\n <\/property>\n <\/bean>\n\n <mvc:view-controller path=\"\/\" view-name=\"index\"><\/mvc:view-controller>\n <mvc:view-controller path=\"\/file\" view-name=\"file\"><\/mvc:view-controller>\n\n <mvc:default-servlet-handler \/>\n\n <!-- \u5f00\u542fMVC\u7684\u6ce8\u89e3\u9a71\u52a8 -->\n <mvc:annotation-driven \/>\n\n <!-- \u914d\u7f6e\u6587\u4ef6\u4e0a\u4f20\u89e3\u6790\u5668\uff0c\u5c06\u4e0a\u4f20\u7684\u6587\u4ef6\u5c01\u88c5\u4e3aMultipartFile -->\n <bean id=\"multipartResolver\" class=\"org.springframework.web.multipart.commons.CommonsMultipartResolver\"><\/bean><\/strong>\n\n<\/beans><\/code><\/pre>\n\n\n\ncontroller<\/p>\n\n\n\n
FileUpAndDownController .java<\/h3>\n\n\n\npackage top.qaqaq.mvc.controller;\n\nimport org.springframework.http.HttpHeaders;\nimport org.springframework.http.HttpStatus;\nimport org.springframework.http.ResponseEntity;\nimport org.springframework.stereotype.Controller;\nimport org.springframework.util.MultiValueMap;\nimport org.springframework.web.bind.annotation.RequestMapping;\nimport org.springframework.web.multipart.MultipartFile;\n\nimport javax.servlet.ServletContext;\nimport javax.servlet.http.HttpSession;\nimport java.io.File;\nimport java.io.FileInputStream;\nimport java.io.IOException;\nimport java.io.InputStream;\nimport java.util.UUID;\n\n\/**\n * @author RichieZhang\n * @create 2022-12-29 21:09\n *\/\n@Controller\npublic class FileUpAndDownController {\n\n @RequestMapping(\"\/testDown\")\n public ResponseEntity<byte[]> testResponseEntity(HttpSession session) throws IOException {\n \/\/\u83b7\u53d6ServletContext\u5bf9\u8c61\n ServletContext servletContext = session.getServletContext();\n \/\/\u83b7\u53d6\u670d\u52a1\u5668\u4e2d\u6587\u4ef6\u7684\u771f\u5b9e\u8def\u5f84\n String realPath = servletContext.getRealPath(\"\/static\/img\/Eclipse.jpg\");\n System.out.println(realPath);\n \/\/\u521b\u5efa\u8f93\u5165\u6d41\n InputStream is = new FileInputStream(realPath);\n \/\/\u521b\u5efa\u5b57\u8282\u6570\u7ec4\n byte[] bytes = new byte[is.available()];\n \/\/\u5c06\u6d41\u8bfb\u5230\u5b57\u8282\u6570\u7ec4\u4e2d\n is.read(bytes);\n \/\/\u521b\u5efaHttpHeaders\u5bf9\u8c61\u8bbe\u7f6e\u54cd\u5e94\u5934\u4fe1\u606f\n MultiValueMap<String, String> headers = new HttpHeaders();\n \/\/\u8bbe\u7f6e\u8981\u4e0b\u8f7d\u65b9\u5f0f\u4ee5\u53ca\u4e0b\u8f7d\u6587\u4ef6\u7684\u540d\u5b57\n headers.add(\"Content-Disposition\", \"attachment;filename=Eclipse.jpg\");\n \/\/\u8bbe\u7f6e\u54cd\u5e94\u72b6\u6001\u7801\n HttpStatus statusCode = HttpStatus.OK;\n \/\/\u521b\u5efaResponseEntity\u5bf9\u8c61\n ResponseEntity<byte[]> responseEntity = new ResponseEntity<byte[]>(bytes, headers, statusCode);\n \/\/\u5173\u95ed\u8f93\u5165\u6d41\n is.close();\n return responseEntity;\n }\n\n @RequestMapping(\"\/testUp\")\n public String testUp(MultipartFile photo, HttpSession session) throws IOException {\n \/\/\u83b7\u53d6\u4e0a\u4f20\u7684\u6587\u4ef6\u7684\u6587\u4ef6\u540d\n String filename = photo.getOriginalFilename();\n \/\/\u83b7\u53d6\u4e0a\u4f20\u7684\u6587\u4ef6\u7684\u540e\u7f00\u540d\n String suffixName = filename.substring(filename.lastIndexOf(\".\"));\n \/\/\u5c06UUID\u4f5c\u4e3a\u6587\u4ef6\u540d\n String uuid = UUID.randomUUID().toString().replaceAll(\"-\",\"\");\n \/\/\u5c06uuid\u548c\u540e\u7f00\u540d\u62fc\u63a5\u540e\u7684\u7ed3\u679c\u4f5c\u4e3a\u6700\u7ec8\u7684\u6587\u4ef6\u540d\n filename = uuid + suffixName;\n \/\/\u901a\u8fc7servletContext\u83b7\u53d6\u670d\u52a1\u5668\u4e2dphoto\u76ee\u5f55\u7684\u8def\u5f84\n ServletContext servletContext = session.getServletContext();\n String photoPath = servletContext.getRealPath(\"photo\");\n File file = new File(photoPath);\n \/\/\u5224\u65adphotoPath\u6240\u5bf9\u5e94\u8def\u5f84\u662f\u5426\u5b58\u5728\n if (!file.exists()) {\n \/\/\u82e5\u4e0d\u5b58\u5728\uff0c\u5219\u521b\u5efa\u76ee\u5f55\n file.mkdir();\n }\n String finalPath = photoPath + File.separator + filename;\n photo.transferTo(new File(finalPath));\n return \"success\";\n }\n\n}\n<\/code><\/pre>\n\n\n\nfile.html<\/p>\n\n\n\n
<!DOCTYPE html>\n<html lang=\"en\" xmlns:th=\"http:\/\/www.thymeleaf.org\">\n<head>\n <meta charset=\"UTF-8\">\n <title>\u6d4b\u8bd5\u6587\u4ef6\u4e0a\u4f20\u548c\u4e0b\u8f7d<\/title>\n<\/head>\n<body>\n <a th:href=\"@{\/testDown}\">\u4e0b\u8f7dEclipse.jpg<\/a>\n <form th:action=\"@{\/testUp}\" method=\"post\" enctype=\"multipart\/form-data\">\n \u5934\u50cf\uff1a<input type=\"file\" name=\"photo\"><br\/>\n <input type=\"submit\" value=\"\u4e0a\u4f20\">\n <\/form>\n<\/body>\n<\/html><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"pom.xml web.xml springMVC.xml controller FileUpAndDownC […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[112],"class_list":["post-2983","post","type-post","status-publish","format-standard","hentry","category-springmvc-code","tag-springmvc"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2983"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2983"}],"version-history":[{"count":2,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2983\/revisions"}],"predecessor-version":[{"id":3133,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/2983\/revisions\/3133"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2983"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2983"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2983"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}