Java最优调用python

public static void main (String[] args) throws Exception{
		String path = "C:\\Users\\Administrator\\PycharmProjects\\testext\\jcpy.py";
		//path = path.replaceAll("/", "\\");
		Process proc = Runtime.getRuntime().exec("python");
		OutputStream ots = proc.getOutputStream();
		BufferedWriter osw = new BufferedWriter(new OutputStreamWriter(ots));
		osw.newLine();
		osw.write("print ('hello')");
		osw.newLine();
		osw.write("print ('word')");
		osw.newLine();
		osw.write("exit(200)");
		osw.flush();
		osw.close();
		InputStream ins = proc.getInputStream();
		BufferedReader br = new BufferedReader(new InputStreamReader(ins));
		String line = br.readLine();
		while (line != null){
			System.out.println(line);
			line = br.readLine();
		}
		proc.waitFor();
		System.out.println(proc.exitValue());
	}

public static void main (String[] args) throws Exception{
		String[] unknown = {"x","y"};
		String[] expression = {"x+y-5"};
		testJieFangCheng(unknown,expression);
	}
	
	public static void testJieFangCheng(String[] unknown, String[] expression) throws Exception{
		Process proc = Runtime.getRuntime().exec("python");
		OutputStream ots = proc.getOutputStream();
		BufferedWriter osw = new BufferedWriter(new OutputStreamWriter(ots));
		osw.newLine();
		osw.write("from sympy import *");
		StringBuffer showElement = new StringBuffer("[");
		for (String ele : unknown){
			osw.newLine();
			osw.write(ele.concat(" = Symbol('").concat(ele).concat("')"));
			showElement.append(ele).append(",");
		}
		showElement.delete(showElement.length()-1, showElement.length()).append("]");
		
		StringBuffer showExpre = new StringBuffer("["); 
		for (String expre : expression){
			showExpre.append(expre).append(",");
		}
		showExpre.delete(showExpre.length()-1, showExpre.length()).append("]");
		
		StringBuffer result = new StringBuffer("result = solve(");
		result.append(showExpre).append(",").append(showElement).append(")");
		osw.newLine();
		osw.write(result.toString());
		osw.newLine();
		osw.newLine();
		osw.write("print (result)");
		osw.newLine();
		osw.write("exit()");
		osw.flush();
		osw.close();
		InputStream ins = proc.getInputStream();
		BufferedReader br = new BufferedReader(new InputStreamReader(ins));
		String line = br.readLine();
		while (line != null){
			System.out.println(line);
			line = br.readLine();
		}
		proc.waitFor();
		System.out.println(proc.exitValue());
	}