Merge branch 'feature/增加html转图片接口工具' into 'develop_java8'

[流程平台]增加html转图片接口工具

See merge request o2oa/o2oa!3144

(cherry picked from commit 195ef8b1)

97c16a78 增加html转图片接口工具
29170535 增加html转图片接口工具第三方jar

o2server/pom.xml

@@ -350,6 +350,10 @@
 			<groupId>net.lingala.zip4j</groupId>
 			<artifactId>zip4j</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>com.github.xuwei-k</groupId>
+			<artifactId>html2image</artifactId>
+		</dependency>
 	</dependencies>
 
 	<build>
@@ -876,6 +880,11 @@
 				<artifactId>activation</artifactId>
 				<version>1.1.1</version>
 			</dependency>
+			<dependency>
+				<groupId>com.github.xuwei-k</groupId>
+				<artifactId>html2image</artifactId>
+				<version>0.1.0</version>
+			</dependency>
 			<dependency>
 				<groupId>o2oa</groupId>
 				<artifactId>x_base_core_project</artifactId>

o2server/x_processplatform_assemble_surface/src/main/java/com/x/processplatform/assemble/surface/jaxrs/attachment/ActionHtmlToImage.java

+package com.x.processplatform.assemble.surface.jaxrs.attachment;
+
+import com.google.gson.JsonElement;
+import com.x.base.core.container.EntityManagerContainer;
+import com.x.base.core.container.factory.EntityManagerContainerFactory;
+import com.x.base.core.entity.annotation.CheckPersistType;
+import com.x.base.core.project.annotation.FieldDescribe;
+import com.x.base.core.project.config.Config;
+import com.x.base.core.project.config.StorageMapping;
+import com.x.base.core.project.exception.ExceptionAccessDenied;
+import com.x.base.core.project.exception.ExceptionEntityNotExist;
+import com.x.base.core.project.gson.GsonPropertyObject;
+import com.x.base.core.project.http.ActionResult;
+import com.x.base.core.project.http.EffectivePerson;
+import com.x.base.core.project.jaxrs.WoId;
+import com.x.base.core.project.logger.Logger;
+import com.x.base.core.project.logger.LoggerFactory;
+import com.x.base.core.project.tools.DateTools;
+import com.x.base.core.project.tools.FileTools;
+import com.x.general.core.entity.GeneralFile;
+import com.x.processplatform.assemble.surface.Business;
+import com.x.processplatform.assemble.surface.ThisApplication;
+import com.x.processplatform.assemble.surface.WorkControl;
+import com.x.processplatform.core.entity.content.Attachment;
+import com.x.processplatform.core.entity.content.Work;
+import gui.ava.html.image.generator.HtmlImageGenerator;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang3.BooleanUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.tika.Tika;
+
+import javax.print.DocFlavor;
+import java.io.File;
+import java.util.Date;
+
+class ActionHtmlToImage extends BaseAction {
+
+	private static Logger logger = LoggerFactory.getLogger(ActionEdit.class);
+
+	ActionResult<Wo> execute(EffectivePerson effectivePerson, JsonElement jsonElement) throws Exception {
+		try (EntityManagerContainer emc = EntityManagerContainerFactory.instance().create()) {
+			ActionResult<Wo> result = new ActionResult<>();
+			Business business = new Business(emc);
+			Wi wi = this.convertToWrapIn(jsonElement, Wi.class);
+			Wo wo = new Wo();
+			String id = saveImage(wi, effectivePerson, business);
+			wo.setId(id);
+			result.setData(wo);
+			return result;
+		}
+	}
+
+	public static class Wo extends WoId {
+
+	}
+
+	private String saveImage(Wi wi, EffectivePerson effectivePerson, Business business) throws Exception{
+		Work work = null;
+		EntityManagerContainer emc = business.entityManagerContainer();
+		if(StringUtils.isNotBlank(wi.getWorkId())) {
+			/* 后面要重新保存 */
+			work = emc.find(wi.getWorkId(), Work.class);
+			/* 判断work是否存在 */
+			if (null == work) {
+				throw new ExceptionEntityNotExist(wi.getWorkId(), Work.class);
+			}
+			WoControl control = business.getControl(effectivePerson, work, WoControl.class);
+			if (BooleanUtils.isNotTrue(control.getAllowSave())) {
+				throw new ExceptionAccessDenied(effectivePerson, work);
+			}
+		}
+
+		String workHtml = wi.getWorkHtml();
+		if (StringUtils.isEmpty(workHtml)) {
+			workHtml = "无内容";
+		}
+		if (workHtml.toLowerCase().indexOf("<html") == -1) {
+			workHtml = "<html><head></head><body>" + workHtml + "</body></html>";
+		}
+		String name = StringUtils.split(effectivePerson.getDistinguishedName(),"@")[0] + DateTools.compact(new Date()) + ".png";
+		if (StringUtils.isNotEmpty(wi.getTitle())) {
+			name = wi.getTitle() + ".png";
+		}
+
+		HtmlImageGenerator imageGenerator = new HtmlImageGenerator();
+		imageGenerator.loadHtml(workHtml);
+		File tempDir = Config.dir_local_temp();
+		FileTools.forceMkdir(tempDir);
+		File file = new File(tempDir, name);
+		imageGenerator.saveAsImage(file);
+		byte[] bytes = FileUtils.readFileToByteArray(file);
+		String key = "";
+		if(work!=null){
+			StorageMapping mapping = ThisApplication.context().storageMappings().random(Attachment.class);
+			Attachment attachment = this.concreteAttachment(work, effectivePerson, wi.getSite());
+			attachment.saveContent(mapping, bytes, name);
+			attachment.setType((new Tika()).detect(bytes, name));
+			emc.beginTransaction(Attachment.class);
+			emc.persist(attachment, CheckPersistType.all);
+			emc.commit();
+
+			key = attachment.getId();
+		}else{
+			StorageMapping gfMapping = ThisApplication.context().storageMappings().random(GeneralFile.class);
+			GeneralFile generalFile = new GeneralFile(gfMapping.getName(), name, effectivePerson.getDistinguishedName());
+			generalFile.saveContent(gfMapping, bytes, name);
+			emc.beginTransaction(GeneralFile.class);
+			emc.persist(generalFile, CheckPersistType.all);
+			emc.commit();
+
+			key = generalFile.getId();
+		}
+
+		return key;
+	}
+
+	private Attachment concreteAttachment(Work work, EffectivePerson effectivePerson, String site) throws Exception {
+		Attachment attachment = new Attachment();
+		attachment.setCompleted(false);
+		attachment.setPerson(effectivePerson.getDistinguishedName());
+		attachment.setLastUpdatePerson(effectivePerson.getDistinguishedName());
+		attachment.setSite(site);
+		/** 用于判断目录的值 */
+		attachment.setWorkCreateTime(work.getCreateTime());
+		attachment.setApplication(work.getApplication());
+		attachment.setProcess(work.getProcess());
+		attachment.setJob(work.getJob());
+		attachment.setActivity(work.getActivity());
+		attachment.setActivityName(work.getActivityName());
+		attachment.setActivityToken(work.getActivityToken());
+		attachment.setActivityType(work.getActivityType());
+		return attachment;
+	}
+
+	public static class Wi extends GsonPropertyObject {
+
+		@FieldDescribe("*待转换html.")
+		private String workHtml;
+		@FieldDescribe("图片标题")
+		private String title;
+		@FieldDescribe("工作标识，把图片保存到工单的附件中，非必填")
+		private String workId;
+		@FieldDescribe("位置，工作标识不为空的时候必填")
+		private String site;
+
+		public String getWorkHtml() {
+			return workHtml;
+		}
+
+		public void setWorkHtml(String workHtml) {
+			this.workHtml = workHtml;
+		}
+
+		public String getTitle() {
+			return title;
+		}
+
+		public void setTitle(String title) {
+			this.title = title;
+		}
+
+		public String getWorkId() {
+			return workId;
+		}
+
+		public void setWorkId(String workId) {
+			this.workId = workId;
+		}
+
+		public String getSite() {
+			return site;
+		}
+
+		public void setSite(String site) {
+			this.site = site;
+		}
+	}
+
+	public static class WoControl extends WorkControl {
+	}
+}

o2server/x_processplatform_assemble_surface/src/main/java/com/x/processplatform/assemble/surface/jaxrs/attachment/AttachmentAction.java

@@ -1215,4 +1215,22 @@ public class AttachmentAction extends StandardJaxrsAction {
 		}
 		asyncResponse.resume(ResponseFactory.getEntityTagActionResultResponse(request, result));
 	}
+
+	@JaxrsMethodDescribe(value = "html转图片工具类，转换后如果工作不为空通过downloadWithWork接口下载，为空downloadTransfer接口下载.", action = ActionHtmlToImage.class)
+	@POST
+	@Path("html/to/image")
+	@Produces(HttpMediaType.APPLICATION_JSON_UTF_8)
+	@Consumes(MediaType.APPLICATION_JSON)
+	public void htmlToImage(@Suspended final AsyncResponse asyncResponse, @Context HttpServletRequest request,
+						  JsonElement jsonElement) {
+		ActionResult<ActionHtmlToImage.Wo> result = new ActionResult<>();
+		EffectivePerson effectivePerson = this.effectivePerson(request);
+		try {
+			result = new ActionHtmlToImage().execute(effectivePerson, jsonElement);
+		} catch (Exception e) {
+			logger.error(e, effectivePerson, request, null);
+			result.error(e);
+		}
+		asyncResponse.resume(ResponseFactory.getEntityTagActionResultResponse(request, result));
+	}
 }