util kotlin

Author: houko

core/src/main/java/info/xiaomo/core/untils/DownUtil.java

@@ -0,0 +1,79 @@
+package info.xiaomo.core.untils
+
+import java.io.File
+import java.io.FileOutputStream
+import java.net.URL
+
+/**
+ * @author : xiaomo (https://xiaomo.info) (https://github.com/xiaomoinfo)
+ * @created : 2016/12/26 13:25
+ */
+object DownUtil {
+
+    @Throws(Exception::class)
+    fun download(urlString: String) {
+        val file = File(urlString)
+        val filename = file.name
+        // 构造URL
+        val url = URL(urlString)
+        // 打开连接
+        val con = url.openConnection()
+        // 输入流
+        val `is` = con.getInputStream()
+        // 1K的数据缓冲
+        val bs = ByteArray(1024)
+        // 读取到的数据长度
+        val len = 0
+        // 输出的文件流
+        val os = FileOutputStream(filename)
+        // 开始读取
+        while ((`is`.read(bs)) != -1) {
+            os.write(bs, 0, len)
+        }
+        // 完毕，关闭所有链接
+        os.close()
+        `is`.close()
+    }
+
+
+    /**
+     * 下载图片
+     *
+     * @param urlString url
+     * @param filePath  存储路径  D:\MIR\config\data\
+     */
+    @Throws(Exception::class)
+    fun download(urlString: String, filePath: String) {
+        val file = File(urlString)
+        val filename = file.name
+        // 构造URL
+        val url = URL(urlString)
+        // 打开连接
+        val con = url.openConnection()
+        // 输入流
+        val `is` = con.getInputStream()
+        // 1K的数据缓冲
+        val bs = ByteArray(1024)
+        // 读取到的数据长度
+        var len = 0
+        // 输出的文件流
+
+        val output = File(filePath)
+        if (!output.exists()) {
+            val res = output.mkdir()
+            if (res) {
+                println("目录创建成功" + filePath)
+            }
+        }
+
+        val os = FileOutputStream(filePath + filename)
+        // 开始读取
+        while ((`is`.read(bs)) != -1) {
+            os.write(bs, 0, len)
+        }
+        // 完毕，关闭所有链接
+        os.close()
+        `is`.close()
+    }
+
+}