java 中json转义处理

StringEscapeUtilsTest.java

/**
* 将一个json串拍平为纯粹的字符串，也就是说，将json串序列化为string的过程中保留双引号这样的，保留转义字符
*/
@Test
public void test2() {
        String str = "[{\"image\"=\"https://pic4.zhimg.com/v2-01d1919be61d42c9ff2e4b82e6e55f1b.jpg\",\"type\"=0, \"id\"=9540230,\"ga_prefix\"=072507, \"title\"=\"日本新推出的「减肥可乐」，喝了真能减肥吗\"}, " +
                "{\"image\"=\"https://pic2.zhimg.com/v2-9caa37a6eba40ce688f25d88dc1d747d.jpg\", \"type\"=0, \"id\"=9539691, \"ga_prefix\"=072507, \"title\"=\"为了演好崇祯皇帝朱由检，和金士杰对戏前我好几天没吃饭\"}, " +
                "{\"image\"=\"https://pic2.zhimg.com/v2-34d7bfd12dfc8e3e73ee1450eb8ede35.jpg\", \"type\"=0, \"id\"=9539642, \"ga_prefix\"=072511, \"title\"=\"安徽小岗村第一个包产到户，为什么现在还是那么穷？\"}, " +
                "{\"image\"=\"https://pic3.zhimg.com/v2-8db6b9c01dfa643d0571b275a4042fda.jpg\", \"type\"=0, \"id\"=9539844, \"ga_prefix\"=072419, \"title\"=\"在一言不合就跳舞的印度，游戏行业的苦只有他们自己知道\"}," +
                "{\"image\"=\"https://pic1.zhimg.com/v2-5bdda92ce69048308702fd8bb260535c.jpg\", \"type\"=0, \"id\"=9539491, \"ga_prefix\"=072416, \"title\"=\"每天中午下午各中暑一次，我们就这样演完了《绣春刀Ⅱ》\"}]";
        System.out.println("str == " + str);
        System.out.println("StringEscapeUtils.escapeJson(str) == " + StringEscapeUtils.escapeJson(str));
        System.out.println("StringEscapeUtils.unescapeJson(str) == " + StringEscapeUtils.unescapeJson(str));
    }
/*
输入结果为：

str == [{"image"="https://pic4.zhimg.com/v2-01d1919be61d42c9ff2e4b82e6e55f1b.jpg","type"=0, "id"=9540230,"ga_prefix"=072507, "title"="日本新推出的「减肥可乐」，喝了真能减肥吗"}, {"image"="https://pic2.zhimg.com/v2-9caa37a6eba40ce688f25d88dc1d747d.jpg", "type"=0, "id"=9539691, "ga_prefix"=072507, "title"="为了演好崇祯皇帝朱由检，和金士杰对戏前我好几天没吃饭"}, {"image"="https://pic2.zhimg.com/v2-34d7bfd12dfc8e3e73ee1450eb8ede35.jpg", "type"=0, "id"=9539642, "ga_prefix"=072511, "title"="安徽小岗村第一个包产到户，为什么现在还是那么穷？"}, {"image"="https://pic3.zhimg.com/v2-8db6b9c01dfa643d0571b275a4042fda.jpg", "type"=0, "id"=9539844, "ga_prefix"=072419, "title"="在一言不合就跳舞的印度，游戏行业的苦只有他们自己知道"},{"image"="https://pic1.zhimg.com/v2-5bdda92ce69048308702fd8bb260535c.jpg", "type"=0, "id"=9539491, "ga_prefix"=072416, "title"="每天中午下午各中暑一次，我们就这样演完了《绣春刀Ⅱ》"}]

StringEscapeUtils.escapeJson(str) == [{\"image\"=\"https:\/\/pic4.zhimg.com\/v2-01d1919be61d42c9ff2e4b82e6e55f1b.jpg\",\"type\"=0, \"id\"=9540230,\"ga_prefix\"=072507, \"title\"=\"\u65E5\u672C\u65B0\u63A8\u51FA\u7684\u300C\u51CF\u80A5\u53EF\u4E50\u300D\uFF0C\u559D\u4E86\u771F\u80FD\u51CF\u80A5\u5417\"}, {\"image\"=\"https:\/\/pic2.zhimg.com\/v2-9caa37a6eba40ce688f25d88dc1d747d.jpg\", \"type\"=0, \"id\"=9539691, \"ga_prefix\"=072507, \"title\"=\"\u4E3A\u4E86\u6F14\u597D\u5D07\u796F\u7687\u5E1D\u6731\u7531\u68C0\uFF0C\u548C\u91D1\u58EB\u6770\u5BF9\u620F\u524D\u6211\u597D\u51E0\u5929\u6CA1\u5403\u996D\"}, {\"image\"=\"https:\/\/pic2.zhimg.com\/v2-34d7bfd12dfc8e3e73ee1450eb8ede35.jpg\", \"type\"=0, \"id\"=9539642, \"ga_prefix\"=072511, \"title\"=\"\u5B89\u5FBD\u5C0F\u5C97\u6751\u7B2C\u4E00\u4E2A\u5305\u4EA7\u5230\u6237\uFF0C\u4E3A\u4EC0\u4E48\u73B0\u5728\u8FD8\u662F\u90A3\u4E48\u7A77\uFF1F\"}, {\"image\"=\"https:\/\/pic3.zhimg.com\/v2-8db6b9c01dfa643d0571b275a4042fda.jpg\", \"type\"=0, \"id\"=9539844, \"ga_prefix\"=072419, \"title\"=\"\u5728\u4E00\u8A00\u4E0D\u5408\u5C31\u8DF3\u821E\u7684\u5370\u5EA6\uFF0C\u6E38\u620F\u884C\u4E1A\u7684\u82E6\u53EA\u6709\u4ED6\u4EEC\u81EA\u5DF1\u77E5\u9053\"},{\"image\"=\"https:\/\/pic1.zhimg.com\/v2-5bdda92ce69048308702fd8bb260535c.jpg\", \"type\"=0, \"id\"=9539491, \"ga_prefix\"=072416, \"title\"=\"\u6BCF\u5929\u4E2D\u5348\u4E0B\u5348\u5404\u4E2D\u6691\u4E00\u6B21\uFF0C\u6211\u4EEC\u5C31\u8FD9\u6837\u6F14\u5B8C\u4E86\u300A\u7EE3\u6625\u5200\u2161\u300B\"}]

StringEscapeUtils.unescapeJson(str) == [{"image"="https://pic4.zhimg.com/v2-01d1919be61d42c9ff2e4b82e6e55f1b.jpg","type"=0, "id"=9540230,"ga_prefix"=072507, "title"="日本新推出的「减肥可乐」，喝了真能减肥吗"}, {"image"="https://pic2.zhimg.com/v2-9caa37a6eba40ce688f25d88dc1d747d.jpg", "type"=0, "id"=9539691, "ga_prefix"=072507, "title"="为了演好崇祯皇帝朱由检，和金士杰对戏前我好几天没吃饭"}, {"image"="https://pic2.zhimg.com/v2-34d7bfd12dfc8e3e73ee1450eb8ede35.jpg", "type"=0, "id"=9539642, "ga_prefix"=072511, "title"="安徽小岗村第一个包产到户，为什么现在还是那么穷？"}, {"image"="https://pic3.zhimg.com/v2-8db6b9c01dfa643d0571b275a4042fda.jpg", "type"=0, "id"=9539844, "ga_prefix"=072419, "title"="在一言不合就跳舞的印度，游戏行业的苦只有他们自己知道"},{"image"="https://pic1.zhimg.com/v2-5bdda92ce69048308702fd8bb260535c.jpg", "type"=0, "id"=9539491, "ga_prefix"=072416, "title"="每天中午下午各中暑一次，我们就这样演完了《绣春刀Ⅱ》"}]

*/

/*依赖库
    compile 'org.apache.commons:commons-lang3:3.6'
*/