poi将visio转为mxGraph xml
时间: 2023-09-03 07:09:19 浏览: 230
要将Visio文件转换为mxGraph XML,需要遵循以下步骤:
1.将Visio文件另存为XML格式。在Visio中打开文件,然后选择“另存为”选项,并将文件类型更改为XML。
2.将XML文件转换为mxGraph XML格式。可以使用任何文本编辑器(例如Notepad ++)打开XML文件,并按照mxGraph XML的格式重新编写它。
3.将mxGraph XML文件导入mxGraph。可以使用mxGraph的JavaScript库来创建mxGraph,然后使用mxGraph.importGraphModel()方法导入mxGraph XML文件。
以下是一个简单的mxGraph XML示例:
```xml
<mxGraphModel>
<root>
<mxCell id="0" />
<mxCell id="1" parent="0" />
<mxCell id="2" value="Hello, World!" style="text;html=1;align=center;verticalAlign=middle;resizable=0;points=[];" parent="1">
<mxGeometry x="20" y="20" width="80" height="40" as="geometry" />
</mxCell>
</root>
</mxGraphModel>
```
这将创建一个带有一个文本框的简单图形。您可以根据需要修改它,以适应您的Visio文件。
相关问题
poi读取visio转成mxgraph xml格式详细代码
下面是将Visio文件转换为mxGraph XML格式的详细代码:
1. 首先,需要在项目中引入mxGraph和poi库:
```xml
<dependency>
<groupId>com.mxgraph</groupId>
<artifactId>mxgraph</artifactId>
<version>4.2.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.1.2</version>
</dependency>
```
2. 接下来,创建一个类来实现Visio文件解析和转换:
```java
import com.mxgraph.util.mxXmlUtils;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.xdgf.usermodel.XDGFDocument;
import org.apache.poi.xdgf.usermodel.XDGFMaster;
import org.apache.poi.xdgf.usermodel.XDGFPage;
import org.apache.poi.xdgf.usermodel.XDGFShape;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import java.io.File;
import java.io.IOException;
public class VisioToMxGraphConverter {
public static String convert(File visioFile) throws IOException, InvalidFormatException {
// Load Visio document
XDGFDocument document = new XDGFDocument(OPCPackage.open(visioFile));
// Create mxGraph XML document
Document mxGraphDoc = mxXmlUtils.createDocument();
Element mxGraphRoot = mxGraphDoc.createElement("mxGraphModel");
mxGraphDoc.appendChild(mxGraphRoot);
// Iterate through pages
for (XDGFPage page : document.getPages()) {
// Iterate through shapes
for (XDGFShape shape : page.getShapes()) {
// Convert Visio shape to mxGraph cell
Element mxCell = convertShape(shape, mxGraphDoc);
mxGraphRoot.appendChild(mxCell);
}
}
// Convert mxGraph XML document to string
return mxXmlUtils.getXml(mxGraphDoc);
}
private static Element convertShape(XDGFShape shape, Document mxGraphDoc) {
// Create mxGraph cell element
Element mxCell = mxGraphDoc.createElement("mxCell");
// Set mxGraph cell attributes
mxCell.setAttribute("id", "1");
mxCell.setAttribute("value", shape.getTextAsString());
mxCell.setAttribute("style", getStyle(shape));
mxCell.setAttribute("vertex", "1");
// Set mxGraph geometry element
Element mxGeometry = mxGraphDoc.createElement("mxGeometry");
mxGeometry.setAttribute("x", Double.toString(shape.getPinX()));
mxGeometry.setAttribute("y", Double.toString(shape.getPinY()));
mxGeometry.setAttribute("width", Double.toString(shape.getWidth()));
mxGeometry.setAttribute("height", Double.toString(shape.getHeight()));
mxCell.appendChild(mxGeometry);
// Set mxGraph parent element
XDGFMaster master = shape.getMaster();
if (master != null) {
Element mxParent = mxGraphDoc.createElement("mxParent");
mxParent.setAttribute("id", master.getName());
mxCell.appendChild(mxParent);
}
return mxCell;
}
private static String getStyle(XDGFShape shape) {
// TODO: Implement style conversion
return "";
}
}
```
3. 在代码中,需要实现一个getStyle()方法来将Visio形状的样式转换为mxGraph样式。这个方法可以根据具体需求进行实现。
4. 最后,在需要转换Visio文件的地方,调用convert()方法并将Visio文件作为参数传入即可:
```java
File visioFile = new File("path/to/visio/file");
String mxGraphXml = VisioToMxGraphConverter.convert(visioFile);
```
poi把visio文件转换成mxGraph XML格式 用JAVA具体实现代码
以下是一个简单的示例代码,可以将Visio文件转换为mxGraph XML格式:
```java
import com.mxgraph.io.mxCodec;
import com.mxgraph.model.mxCell;
import com.mxgraph.model.mxGeometry;
import com.mxgraph.model.mxICell;
import com.mxgraph.model.mxGraphModel;
import com.mxgraph.util.mxXmlUtils;
import com.mxgraph.view.mxGraph;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
public class VisioToMxGraphConverter {
public static void main(String[] args) throws IOException {
String visioFile = "example.vsd";
String mxGraphFile = "example.xml";
convert(visioFile, mxGraphFile);
}
public static void convert(String visioFile, String mxGraphFile) throws IOException {
mxGraph graph = new mxGraph();
mxGraphModel model = (mxGraphModel) graph.getModel();
// Load Visio file as XML document
File file = new File(visioFile);
InputStream in = new FileInputStream(file);
Document doc = mxXmlUtils.parseXml(mxXmlUtils.getXml(in));
Element root = doc.getDocumentElement();
// Map for storing cells by ID
Map<String, mxICell> cells = new HashMap<String, mxICell>();
// Find all shapes in Visio file
NodeList shapes = root.getElementsByTagName("Visio:Shape");
// Create mxCells for each Visio shape
for (int i = 0; i < shapes.getLength(); i++) {
Element shape = (Element) shapes.item(i);
String id = shape.getAttribute("ID");
String name = shape.getAttribute("Name");
String type = shape.getAttribute("Type");
mxCell cell = new mxCell(name, new mxGeometry(), type);
cells.put(id, cell);
model.add(cell);
}
// Connect Visio shapes to form edges
NodeList connectors = root.getElementsByTagName("Visio:Connect");
for (int i = 0; i < connectors.getLength(); i++) {
Element connector = (Element) connectors.item(i);
String from = connector.getAttribute("FromSheet");
String to = connector.getAttribute("ToSheet");
mxICell source = cells.get(from);
mxICell target = cells.get(to);
model.beginUpdate();
try {
graph.insertEdge(graph.getDefaultParent(), null, "", source, target);
} finally {
model.endUpdate();
}
}
// Write mxGraph XML to file
mxCodec codec = new mxCodec();
String xml = mxXmlUtils.getXml(codec.encode(model));
mxXmlUtils.writeFile(xml, mxGraphFile);
}
}
```
该代码使用mxGraph库将Visio文件转换为mxGraph XML格式。它首先将Visio文件加载为XML文档,然后创建一个mxGraph对象和一个mxGraphModel对象。然后,它遍历每个Visio形状,并为每个形状创建一个mxCell对象,然后将其添加到mxGraphModel中。接下来,它遍历每个连接器,并使用从和到属性连接Visio形状以创建边缘。最后,它使用mxCodec将mxGraphModel编码为mxGraph XML格式,并将其写入文件中。
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