文章目录

• • 1.前言
  • 2.参考资料
  • 3.具体操作

1.前言

在网站上编辑富文本数据，直接采用百度的富文本编辑器，但是这个编辑器有个缺点，后端部分配置只能通过/jsp/config.json文件配置，为了解决动态化存储问题只能修改编辑器源码

2.参考资料

https://www.cnblogs.com/xiaotaoqi/p/6436362.html

感谢优秀博主提供的参考资料，原博文更详细，请支持原博文

3.具体操作

imageUrlPrefix + imagePathFormat 是图片的访问路径

正常情况下，在加载ueditor编辑器时，会访问ueditor/jsp/controller.jsp

controller.jsp

 request.setCharacterEncoding( "utf-8" );response.setHeader("Content-Type" , "text/html");String rootPath = application.getRealPath( "/" );System.out.println(rootPath);out.write( new ActionEnter( request, rootPath ).exec() );

在创建ActionEnter实例的时候，初始化ConfigManager类

源代码（查看源码可是使用jsp返编译工具）：

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//package com.baidu.ueditor;import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONObject;public final class ConfigManager {private final String rootPath;//绝对根路径private final String originalPath;private final String contextPath;private static final String configFileName = "config.json";private String parentPath = null;//controller.jsp的上级目录路径private JSONObject jsonConfig = null;//解析config.json后的json对象private static final String SCRAWL_FILE_NAME = "scrawl";private static final String REMOTE_FILE_NAME = "remote";private ConfigManager(String rootPath, String contextPath, String uri) throws FileNotFoundException, IOException {rootPath = rootPath.replace("\\", "/");this.rootPath = rootPath;this.contextPath = contextPath;if(contextPath.length() > 0) {this.originalPath = this.rootPath + uri.substring(contextPath.length());} else {this.originalPath = this.rootPath + uri;}this.initEnv();}public static ConfigManager getInstance(String rootPath, String contextPath, String uri) {try {return new ConfigManager(rootPath, contextPath, uri);} catch (Exception var4) {return null;}}public boolean valid() {return this.jsonConfig != null;}public JSONObject getAllConfig() {return this.jsonConfig;}public Map getConfig(int type) {HashMap conf = new HashMap();String savePath = null;switch(type) {case 1:conf.put("isBase64", "false");conf.put("maxSize", Long.valueOf(this.jsonConfig.getLong("imageMaxSize")));conf.put("allowFiles", this.getArray("imageAllowFiles"));conf.put("fieldName", this.jsonConfig.getString("imageFieldName"));savePath = this.jsonConfig.getString("imagePathFormat");break;case 2:conf.put("filename", "scrawl");conf.put("maxSize", Long.valueOf(this.jsonConfig.getLong("scrawlMaxSize")));conf.put("fieldName", this.jsonConfig.getString("scrawlFieldName"));conf.put("isBase64", "true");savePath = this.jsonConfig.getString("scrawlPathFormat");break;case 3:conf.put("maxSize", Long.valueOf(this.jsonConfig.getLong("videoMaxSize")));conf.put("allowFiles", this.getArray("videoAllowFiles"));conf.put("fieldName", this.jsonConfig.getString("videoFieldName"));savePath = this.jsonConfig.getString("videoPathFormat");break;case 4:conf.put("isBase64", "false");conf.put("maxSize", Long.valueOf(this.jsonConfig.getLong("fileMaxSize")));conf.put("allowFiles", this.getArray("fileAllowFiles"));conf.put("fieldName", this.jsonConfig.getString("fileFieldName"));savePath = this.jsonConfig.getString("filePathFormat");break;case 5:conf.put("filename", "remote");conf.put("filter", this.getArray("catcherLocalDomain"));conf.put("maxSize", Long.valueOf(this.jsonConfig.getLong("catcherMaxSize")));conf.put("allowFiles", this.getArray("catcherAllowFiles"));conf.put("fieldName", this.jsonConfig.getString("catcherFieldName") + "[]");savePath = this.jsonConfig.getString("catcherPathFormat");break;case 6:conf.put("allowFiles", this.getArray("fileManagerAllowFiles"));conf.put("dir", this.jsonConfig.getString("fileManagerListPath"));conf.put("count", Integer.valueOf(this.jsonConfig.getInt("fileManagerListSize")));break;case 7:conf.put("allowFiles", this.getArray("imageManagerAllowFiles"));conf.put("dir", this.jsonConfig.getString("imageManagerListPath"));conf.put("count", Integer.valueOf(this.jsonConfig.getInt("imageManagerListSize")));}conf.put("savePath", savePath);conf.put("rootPath", this.rootPath);return conf;}private void initEnv() throws FileNotFoundException, IOException {File file = new File(this.originalPath);if(!file.isAbsolute()) {file = new File(file.getAbsolutePath());}this.parentPath = file.getParent();String configContent = this.readFile(this.getConfigPath());try {JSONObject e = new JSONObject(configContent);this.jsonConfig = e;} catch (Exception var4) {this.jsonConfig = null;}}private String getConfigPath() {return this.parentPath + File.separator + "config.json";}private String[] getArray(String key) {JSONArray jsonArray = this.jsonConfig.getJSONArray(key);String[] result = new String[jsonArray.length()];int i = 0;for(int len = jsonArray.length(); i < len; ++i) {result[i] = jsonArray.getString(i);}return result;}private String readFile(String path) throws IOException {StringBuilder builder = new StringBuilder();try {InputStreamReader reader = new InputStreamReader(new FileInputStream(path), "UTF-8");BufferedReader bfReader = new BufferedReader(reader);String tmpContent = null;while((tmpContent = bfReader.readLine()) != null) {builder.append(tmpContent);}bfReader.close();} catch (UnsupportedEncodingException var6) {;}return this.filter(builder.toString());}private String filter(String input) {return input.replaceAll("/\\*[\\s\\S]*?\\*/", "");}
}

private String getConfigPath() {return this.parentPath + File.separator + "config.json";
}

这方法是拼全config.json的绝对路径，但是parentPath是controller.jsp 的目录路径，所以限制config.json 必须和controller.jsp在同一个目录下。当用spring或者其他代替controller.jsp时，就会找不到这个json文件。

所以这个地方直接改为

//修改
private String getConfigPath() {return this.rootPath + File.separator + "WEB-INF" + File.separator + "classes"+File.separator + "config.json";
}

关于上传文件路径配置问题，在源码中下载图片的类是BinaryUploader

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//package com.baidu.ueditor.upload;import com.baidu.ueditor.PathFormat;
import com.baidu.ueditor.define.BaseState;
import com.baidu.ueditor.define.FileType;
import com.baidu.ueditor.define.State;
import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.List;
import java.util.Map;public class BinaryUploader {public BinaryUploader() {}public static final State save(HttpServletRequest request, Map conf) {FileItemStream fileStream = null;boolean isAjaxUpload = request.getHeader("X_Requested_With") != null;if(!ServletFileUpload.isMultipartContent(request)) {return new BaseState(false, 5);} else {ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory());if(isAjaxUpload) {upload.setHeaderEncoding("UTF-8");}try {for(FileItemIterator e = upload.getItemIterator(request); e.hasNext(); fileStream = null) {fileStream = e.next();if(!fileStream.isFormField()) {break;}}if(fileStream == null) {return new BaseState(false, 7);} else {String savePath = (String)conf.get("savePath");String originFileName = fileStream.getName();String suffix = FileType.getSuffixByFilename(originFileName);originFileName = originFileName.substring(0, originFileName.length() - suffix.length());savePath = savePath + suffix;long maxSize = ((Long)conf.get("maxSize")).longValue();if(!validType(suffix, (String[])conf.get("allowFiles"))) {return new BaseState(false, 8);} else {savePath = PathFormat.parse(savePath, originFileName);String physicalPath = (String)conf.get("rootPath") + savePath;InputStream is = fileStream.openStream();State storageState = StorageManager.saveFileByInputStream(is, physicalPath, maxSize);is.close();if(storageState.isSuccess()) {storageState.putInfo("url", PathFormat.format(savePath));storageState.putInfo("type", suffix);storageState.putInfo("original", originFileName + suffix);}return storageState;}}} catch (FileUploadException var14) {return new BaseState(false, 6);} catch (IOException var15) {return new BaseState(false, 4);}}}private static boolean validType(String type, String[] allowTypes) {List list = Arrays.asList(allowTypes);return list.contains(type);}
}

在第64行中，String physicalPath = (String)conf.get("rootPath") + savePath;
就是上传图片最后的路径。

其中rootPath是根路径，savePath是自定义的图片保存路径（即imagePathFormat对应的值）

在源码中rootPath已被限制为网站根目录，所以在这里需要改变为自定义的路径。

其中ConfigManager类中第109，110这里传入的路径字符串，只需将这改为

conf.put("savePath", savePath);
conf.put("rootPath", this.jsonConfig.getString("uploadRoot"));

最后，controller.jsp的替代方法：

package com.imp.filter;import com.baidu.ueditor.ActionEnter;import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.logging.Logger;/*** Created by (IMP)郑和明* Date is 2016/12/26** UEditor controller.jsp 拦截器** 初始化 config,json**/
@WebFilter(filterName = "UEditorFilter",urlPatterns = "/ueditor/jsp/controller.jsp")
public class UEditorFilter implements Filter {private FilterConfig config;public void destroy() {}public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {HttpServletRequest request= (HttpServletRequest) req;HttpServletResponse response= (HttpServletResponse) resp;request.setCharacterEncoding("utf-8");response.setHeader("Content-Type", "text/html");String rootPath= config.getServletContext().getRealPath("/");Logger.getLogger("imp").info(rootPath);String res=new ActionEnter(request, rootPath).exec();response.getWriter().write(res);}public void init(FilterConfig config) throws ServletException {this.config=config;}
}

结束。