环境搭建
- 使用wangEditor
- SpringMVC
1.pom.xml
<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.itmayiedu</groupId>
<artifactId>WangEditorDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- 文件上传 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.2</version>
</dependency>
<!-- Spring 依赖(context包含:beans/core/aop/expression) -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.17.RELEASE</version>
</dependency>
<!--SpringMVC依赖(springwebmvc包含了:beans/core/aop/expression/context) -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.17.RELEASE</version>
</dependency>
<!-- jackjson start -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.7.4</version>
</dependency>
<!-- jackjson end -->
</dependencies>
<build>
<plugins>
<!-- 制定jdk版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- war 包类型的时候 mvn package 的时候需要安装maven插件 -->
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<!-- tomcat7 maven插件 -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<!--项目访问路径。当前配置的访问是localhost:9090/, 如果配置是/aa，则访问路径为localhost:9090/aa -->
<path>/</path>
<port>8080</port>
<uriEncoding>UTF-8</uriEncoding><!-- 非必需项 -->
</configuration>
</plugin>
</plugins>
</build>
</project>
使用maven-tomcat插件，运行使用
clean tomcat7:run命令
2.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!-- 字符集处理 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<!--过滤器拦截所有 -->
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- spring mvc 核心控制器DispatcherServlet组件 -->
<servlet>
<servlet-name>springServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/spring-mvc*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
3.spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 使用 Annotation 自动注册 Bean,只扫描 @Controller -->
<context:component-scan base-package="com.itmayiedu.web.controller"
use-default-filters="false">
<context:include-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!-- 默认的注解映射的支持 -->
<mvc:annotation-driven />
<!-- 上传文件拦截，设置最大上传文件大小 10M = 10*1024*1024(B) = 10485760 bytes -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10485760" />
</bean>
<!-- 定义视图文件解析 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- 静态资源映射 -->
<mvc:resources mapping="/static/**" location="/static/"
cache-period="31536000" />
</beans>
4.引入wangEditor 的js 和cs
<link rel="stylesheet" href="/static/css/wangEditor.min.css" />
<script type="text/javascript" src="/static/js/wangEditor.min.js"></script>
<script type="text/javascript" src="/static/js/jQuery-3.4.1.js"></script>
使用wangEditor批量上传并且保证上传图片顺序
1.upload.js
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>富文本编辑器批量上传图片</title>
<link rel="stylesheet" href="/static/css/wangEditor.min.css" />
</head>
<body>
<div id="editor"></div>
<script type="text/javascript" src="/static/js/wangEditor.min.js"></script>
<script type="text/javascript" src="/static/js/jQuery-3.4.1.js"></script>
<script>
$(function() {
var E = window.wangEditor;
var editor = new E(document.getElementById('editor'));
//自定义文件上传
editor.customConfig.customUploadImg = function(files, insert) {
var daw = new FormData();
for (var i = 0; i < files.length; i++) {
daw.append("files", files[i]);
}
//发送异步请求
$.ajax({
url : "${pageContext.request.contextPath}/uploadImage",
type : "POST",
data : daw,
async : false,
cache : false,
contentType : false,
processData : false,
success : function(da) {
if (da.errno == 0) {
for (var j = 0; j < da.data.length; j++) {
insert(da.data[j]);
}
} else {
alert(da.msg);
return;
}
},
});
}
editor.create()
});
</script>
</body>
</html>
2.contorller层
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class UploadController {
private static final String UPLOAD_IMAGE = "/static/upload/image";
/**
* 跳转到富文本编辑页面
*
* @return
*/
@RequestMapping(value = "/upload", method = RequestMethod.GET)
public String upload() {
return "upload";
}
/**
* 上传图片
*/
@RequestMapping(value = "/uploadImage", method = RequestMethod.POST)
@ResponseBody
public Map<String, Object> uploadImage(@RequestParam(value = "files", required = false) List<MultipartFile> files,
HttpServletRequest request) {
System.out.println(">>>>>" + files);
Map<String, Object> result = new HashMap<>();
String imgUrls[] = new String[files.size()];
// 文件存放的路径
String filePath = request.getSession().getServletContext().getRealPath(UPLOAD_IMAGE);
System.out.println(filePath);
if (files != null && files.size() > 0) {
for (int i = 0; i < files.size(); i++) {
MultipartFile multipartFile = files.get(i);
// System.out.println(String.format("文件名称:%s",multipartFile.getOriginalFilename()));
String fileName = multipartFile.getOriginalFilename();
String fileSuffix = fileName.substring(fileName.lastIndexOf("."));
// System.out.println(String.format("后缀名:%s", fileSuffix));
fileName = UUID.randomUUID().toString().replace("-", "") + fileSuffix;
// System.out.println(fileName);
// 判断路径是否存在，不存在则创建文件夹
File file = new File(filePath);
if (!file.exists()) {
file.mkdir();
}
// 将文件写入目标
file = new File(filePath, fileName);
try {
multipartFile.transferTo(file);
} catch (IOException e) {
e.printStackTrace();
}
// 获取服务端路径 ,为了图片显示
String serverPath = String.format("%s://%s:%s%s%s", request.getScheme(), request.getServerName(),
request.getServerPort(), request.getContextPath(), UPLOAD_IMAGE);
;
imgUrls[i]=serverPath+"/"+fileName;
System.out.println(imgUrls[i]);
}
}
result.put("errno", 0);
result.put("data", imgUrls);
return result;
}
}
可以把文件上传封装成一个工具类。我这里就没有进行封装了。返回的json格式要遵循一下格式
{
// errno 即错误代码，0 表示没有错误。
// 如果有错误，errno != 0，可通过下文中的监听函数 fail 拿到该错误码进行自定义处理
"errno": 0,
// data 是一个数组，返回若干图片的线上地址
"data": [
"图片1地址",
"图片2地址",
"……"
]
}
//参考wangEditor中的上传图片文档
SpringMVC页面跳转是通过controller进行跳转，我们把页面放到WEB-INF下面。css和js放到webapp下面，在spring-mvc.xml中配置静态资源放行
还没有测试再网络延迟下批量上传图片是否保证图片顺序
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