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+----
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+title: Java常用代码块
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+date: 2016-11-08
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+tags: Java
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+comments: false
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+cover: https://static.jqwei.com/blog/img/IMG_3461.PNG
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+categories: 运维工具
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+---
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+
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+## java常用代码块
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+
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+### map 根据Key排序
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+
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+``` java
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+ /**
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+ * map 按 key 升序排序
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+ *
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+ * @param map
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+ * @return
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+ */
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+ private static Map<String, Object> sortByKey(Map<String, Object> map) {
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+ Map<String, Object> result = new LinkedHashMap<>(map.size());
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+ map.entrySet().stream()
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+ .sorted(Map.Entry.comparingByKey())
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+ .forEachOrdered(e -> result.put(e.getKey(), e.getValue()));
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+ return result;
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+ }
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+```
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