latex 插入java 代码模版

废了好大劲
把下面那堆东西添加到头文件就好了，(PS ? UI真难做)

模版

 \usepackage{listings}
\usepackage{color}
\usepackage{xcolor}
\definecolor{dkgreen}{rgb}{0,0.6,0}
\definecolor{gray}{rgb}{0.5,0.5,0.5}
\definecolor{mauve}{rgb}{0.58,0,0.82}
\lstset{frame=tb,
     language=Java,
     aboveskip=3mm,
     belowskip=3mm,
     showstringspaces=false,
     columns=flexible,
     basicstyle = \ttfamily\small,
     numbers=none,
     numberstyle=\tiny\color{gray},
     keywordstyle=\color{blue},
     commentstyle=\color{dkgreen},
     stringstyle=\color{mauve},
     breaklines=true,
     breakatwhitespace=true,
     tabsize=3
}

样例

\begin{lstlisting}[ language=Java]
package information;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;

public final class Graph {
	private final static String curDir = System.getProperty("user.dir")+System.getProperty("file.separator")+"output";
	private final static String sysLineSep = System.getProperty("line.separator");
	private final static byte[] lsByteArr = sysLineSep.getBytes();
	private ArrayList edges = new ArrayList<>();
	private ArrayList nodes = new ArrayList<>();

	public Graph() {
		super();
	}
	
	public void addEdge(int from,int to,Character c) {
		this.addEdge(String.valueOf(from),String.valueOf(to), String.valueOf(c));
	}
	public void addEdge(String from,String to, String c) {
		edges.add(from+" -> "+to+String.format("[label=\"%s\"]", c));
	}
	private File writeDotFile(String name) {
		File dotFile = new File(curDir, name+".dot");
		
		// write dot file
		try(FileOutputStream fos = new FileOutputStream(dotFile)){
			fos.write(String.valueOf("digraph tmp{").getBytes());
			fos.write(lsByteArr);
			writeNodes(fos);
			writeEdges(fos);
			fos.write(String.valueOf("}").getBytes());
			fos.write(lsByteArr);
		}catch (IOException e) {
			// TODO: handle exception
			e.printStackTrace();
		}
		return dotFile;
	}
	private void writeEdges(OutputStream os) throws IOException {
		for(String e: edges){
			os.write(e.getBytes());
			os.write(lsByteArr);
		}
	}
	private void writeNodes(OutputStream os) throws IOException {
		for(String e: nodes){
			os.write(e.getBytes());
			os.write(lsByteArr);
		}
	}
	public void draw(String name) {
		File dotFile = writeDotFile(name);
		File png = new File(curDir,name+".png");
		String cmd = String.format("dot %s -T png -o %s", dotFile.getAbsolutePath(),png.getAbsolutePath());
		try {
			Runtime.getRuntime().exec(cmd);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	public void draw() {
		String name = "graph";
		draw(name);
	}
	public void setStart(int node) {
		nodes.add(String.format("%d [color=blue]", node));
	}
	public void setEnd(int node) {
		nodes.add(String.format("%d [color=red]", node));
	}

}

\end{lstlisting}

输出效果