但是一般都只是用到了他们的第一个参数,
比如: 字符串转对象:JSON.parse('{}');
对象转字符串:JSON.stringify({});
https://mozilla.github.io/rhino/ 下载 rhino1_7R5.zip , 解压后运行 cmd
cd D:\rhino\rhino1_7R5
java -jar js.jar json.js
// Import the Swing GUI components and a few other classes var swingNames = new JavaImporter(javax.swing, javax.swing.event, javax.swing.border, java.awt,java.awt.event); importPackage(java.net); importPackage(java.io); importPackage(java.util); importClass(java.lang.Thread); with (swingNames) { var frame = new JFrame("JSON 天气预报 "); //frame.setSize(600,400); frame.setLocation(200,200); var txtfield = new JTextField(40); // URL entry field var alist = ["北京","上海","天津","重庆","广州","杭州","武汉","长春"]; var blist = ["010100","020100","030100","040100","280101","210101","200101","060101"]; txtfield.setText("http://www.weather.com.cn/data/sk/101"+blist[4]+".html"); var button1 = new JButton("Go"); // Button to send var button2= new JButton("Clear"); var filechooser = new JFileChooser(); // A file selection dialog var row = Box.createHorizontalBox(); // A box for field and button var col = Box.createVerticalBox(); // For the row & progress bars var padding = new EmptyBorder(3,3,3,3); // Padding for rows var texta = new JTextArea(10,30); texta.setEditable(false); texta.setLineWrap(true); var sp = new JScrollPane(texta); //sp.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); sp.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED); // Put them all together and display the GUIm row.add(txtfield); // Input field goes in the row row.add(button1); // Button goes in the row row.add(button2); col.add(row); // Row goes in the column col.add(sp); frame.add(col); // Column goes in the frame row.setBorder(padding); // Add some padding to the row frame.pack(); // Set to minimum size frame.visible = true; // Make the window visible frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // KeyEvent: ENTER txtfield.addActionListener(function() { try { var url = new URL(txtfield.text); new java.lang.Thread(function() { connect(url); }).start(); } catch(e) { JOptionPane.showMessageDialog(frame, e.message, "Exception", JOptionPane.ERROR_MESSAGE); } }); // When the user clicks the button, call this function button1.addActionListener(function() { try { var url = new URL(txtfield.text); new java.lang.Thread(function() { connect(url);}).start(); } catch(e) { JOptionPane.showMessageDialog(frame, e.message, "Exception", JOptionPane.ERROR_MESSAGE); } }); // Clear button2.addActionListener(function() { texta.setText(""); }); // 连接 function connect(url){ try { var conn = url.openConnection(); // Get java.net.URLConnection conn.setConnectTimeout(5000); conn.connect(); // Connect and wait for headers var input = new InputStreamReader(conn.getInputStream(),"UTF-8"); var buf = new BufferedReader(input); var line = buf.readLine().toString(); buf.close(); input.close(); var obj = JSON.parse(line.trim()); var str =""; if (obj == null) str = line; else str = JSON.stringify(obj, null, 4); // 缩进4个空格 texta.append(str+"\n"); } catch(ex){ texta.append(ex.message); } } }
参考: JSON.parse和JSON.stringify 参数详解
https://www.cnblogs.com/lmh2072005/p/5985431.html