java聊天系统 可以传送文件哈

[{"title":"（ 8 个子文件 14KB ） java聊天系统 可以传送文件哈","children":[{"title":"Final_chat","children":[{"title":"Server.java <span style='color:#111;'> 11.43KB </span>","children":null,"spread":false},{"title":"SYSTEMIO.java <span style='color:#111;'> 805B </span>","children":null,"spread":false},{"title":"InfoPackage.java <span style='color:#111;'> 1.51KB </span>","children":null,"spread":false},{"title":"Register.java <span style='color:#111;'> 5.15KB </span>","children":null,"spread":false},{"title":"Client.java <span style='color:#111;'> 8.31KB </span>","children":null,"spread":false},{"title":"Login.java <span style='color:#111;'> 2.92KB </span>","children":null,"spread":false},{"title":"History.java <span style='color:#111;'> 7.89KB </span>","children":null,"spread":false},{"title":"MessageFrame.java <span style='color:#111;'> 6.05KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]