增加string工具类

zheng-common/src/main/java/com/zheng/common/util/StringUtil.java

@@ -0,0 +1,78 @@
+package com.zheng.common.util;
+
+/**
+ * String 工具类
+ * Created by shuzheng on 2016/12/07.
+ */
+public class StringUtil {
+
+    /**
+     * object转String
+     * @param object
+     * @return
+     */
+    public static String getString(Object object) {
+        return getString(object, "");
+    }
+
+    public static String getString(Object object, String defaultValue) {
+        if (null == object) {
+            return defaultValue;
+        }
+        try {
+            return object.toString();
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+    /**
+     * object转Integer
+     * @param object
+     * @return
+     */
+    public static int getInt(Object object) {
+        return getInt(object, -1);
+    }
+
+    public static int getInt(Object object, Integer defaultValue) {
+        if (null == object) {
+            return defaultValue;
+        }
+        try {
+            return Integer.parseInt(object.toString());
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+    /**
+     * object转Boolean
+     * @param object
+     * @return
+     */
+    public static boolean getBoolean(Object object) {
+        return getBoolean(object, false);
+    }
+
+    public static boolean getBoolean(Object object, Boolean defaultValue) {
+        if (null == object) {
+            return defaultValue;
+        }
+        try {
+            return Boolean.parseBoolean(object.toString());
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
+    public static void main(String[] args) {
+        System.out.println(getString(null));
+        System.out.println(getString(null, "hello"));
+
+        System.out.println(getInt("1"));
+        System.out.println(getInt("xx"));
+        System.out.println(getInt("xx", 4));
+    }
+
+}