{"id":479,"date":"2023-11-26T17:38:14","date_gmt":"2023-03-08T05:55:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%b0%86java%e4%b8%ad%e7%9a%84string%e6%95%b0%e7%bb%84%e8%bd%ac%e5%8c%96%e4%b8%bastring%e7%b1%bb%e5%9e%8b%e3%80%82%e5%b0%86java%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84\/"},"modified":"2025-08-02T12:49:30","modified_gmt":"2025-08-02T04:49:30","slug":"%e5%b0%86java%e4%b8%ad%e7%9a%84string%e6%95%b0%e7%bb%84%e8%bd%ac%e5%8c%96%e4%b8%bastring%e7%b1%bb%e5%9e%8b%e3%80%82%e5%b0%86java%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%86java%e4%b8%ad%e7%9a%84string%e6%95%b0%e7%bb%84%e8%bd%ac%e5%8c%96%e4%b8%bastring%e7%b1%bb%e5%9e%8b%e3%80%82%e5%b0%86java%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84\/","title":{"rendered":"Java\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32\uff1a\u591a\u79cd\u5b9e\u73b0\u65b9\u6cd5\u4e0e\u6027\u80fd\u5bf9\u6bd4"},"content":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5c06Java\u4e2d\u7684String\u6570\u7ec4\u8f6c\u5316\u4e3aString\u7c7b\u578b\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n<p>\u4eca\u5929\u6211\u4eec\u5c06\u7814\u7a76\u5982\u4f55\u5c06Java\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u6709\u65f6\u5019\u6211\u4eec\u9700\u8981\u6839\u636e\u7279\u5b9a\u7684\u8981\u6c42\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff1a\u6211\u4eec\u60f3\u8981\u8bb0\u5f55\u6570\u7ec4\u7684\u5185\u5bb9\uff0c\u6216\u8005\u6211\u4eec\u9700\u8981\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u7684\u503c\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5e76\u8c03\u7528\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<h2>\u5c06Java\u7684String\u6570\u7ec4\u8f6c\u6362\u4e3aString\u7c7b\u578b<\/h2>\n<p>\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4f1a\u8c03\u7528\u4e00\u4e2a\u5bf9\u8c61\u7684toString()\u65b9\u6cd5\u6765\u83b7\u5f97\u5176\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u3002\u8ba9\u6211\u4eec\u770b\u770b\u5728Java\u4e2d\u8c03\u7528String\u6570\u7ec4\u7684toString()\u65b9\u6cd5\u4f1a\u53d1\u751f\u4ec0\u4e48\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.util;\r\n\r\npublic class JavaStringArrayToString {\r\n\r\n    public static void main(String[] args) {\r\n        String[] strArr = new String[] {\"1\",\"2\",\"3\"};\r\n        \r\n        String str = strArr.toString();\r\n        \r\n        System.out.println(\"Java\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32 = \"+str);\r\n    }\r\n\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7a0b\u5e8f\u4ea7\u751f\u7684\u8f93\u51fa\u5982\u4e0b\u3002\u8fd9\u79cd\u8f93\u51fa\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u5bf9\u6570\u7ec4\u7684toString()\u8c03\u7528\u5b9e\u9645\u4e0a\u662f\u8c03\u7528\u4e86Object\u8d85\u7c7b\u4e2d\u7684toString()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u7684\u5b9e\u73b0\u5982\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>public String toString() {\r\n        return getClass().getName() + \"@\" + Integer.toHexString(hashCode());\r\n    }\r\n<\/code><\/pre>\n<h3>\u5c06Java\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u7684\u793a\u4f8b<\/h3>\n<p>\u90a3\u4e48\u5728Java\u4e2d\u5982\u4f55\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u5462\uff1f\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Arrays.toString\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4f1a\u5728\u6bcf\u4e2a\u5143\u7d20\u4e0a\u8c03\u7528toString()\u65b9\u6cd5\uff0c\u7136\u540e\u4f7f\u7528StringBuilder\u521b\u5efa\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code>public static String toString(Object[] a) {\r\n    if (a == null)\r\n        return \"null\";\r\n\r\n    int iMax = a.length - 1;\r\n    if (iMax == -1)\r\n        return \"[]\";\r\n\r\n    StringBuilder b = new StringBuilder();\r\n    b.append('[');\r\n    for (int i = 0; ; i++) {\r\n        b.append(String.valueOf(a[i]));\r\n        if (i == iMax)\r\n            return b.append(']').toString();\r\n        b.append(\", \");\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u6709\u4e00\u4e9b\u7279\u5b9a\u7684\u683c\u5f0f\u8981\u6c42\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u521b\u5efa\u81ea\u5df1\u7684\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7a0b\u5e8f\u6f14\u793a\u4e86\u8fd9\u4e9b\u65b9\u6cd5\u7684\u4f7f\u7528\u4ee5\u53ca\u4ea7\u751f\u7684\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.util;\r\n\r\nimport java.util.Arrays;\r\n\r\npublic class JavaStringArrayToString {\r\n\r\n    public static void main(String[] args) {\r\n        String[] strArr = new String[] { \"1\", \"2\", \"3\" };\r\n\r\n        String str = Arrays.toString(strArr);\r\n        System.out.println(\"Java\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32 = \" + str);\r\n\r\n        str = convertStringArrayToString(strArr, \",\");\r\n        System.out.println(\"\u8f6c\u6362Java\u5b57\u7b26\u4e32\u6570\u7ec4\u4e3a\u5b57\u7b26\u4e32 = \" + str);\r\n\r\n    }\r\n\r\n    private static String convertStringArrayToString(String[] strArr, String delimiter) {\r\n        StringBuilder sb = new StringBuilder();\r\n        for (String str : strArr)\r\n            sb.append(str).append(delimiter);\r\n        return sb.substring(0, sb.length() - 1);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u5982\u679c\u6211\u4eec\u76f4\u63a5\u4f7f\u7528\u6570\u7ec4\u7684toString()\u65b9\u6cd5\uff0c\u5b83\u4f1a\u8fd4\u56de\u6ca1\u6709\u5b9e\u9645\u610f\u4e49\u7684\u6570\u636e\u3002Java\u7684Arrays\u7c7b\u63d0\u4f9b\u4e86toString(Object[] objArr)\u65b9\u6cd5\uff0c\u5b83\u904d\u5386\u6570\u7ec4\u7684\u5143\u7d20\u5e76\u4f7f\u7528\u5b83\u4eec\u7684toString()\u5b9e\u73b0\u6765\u8fd4\u56de\u6570\u7ec4\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5f53\u6211\u4eec\u4f7f\u7528\u8fd9\u4e2a\u51fd\u6570\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5b83\u6253\u5370\u51fa\u4e86\u6570\u7ec4\u7684\u5185\u5bb9\uff0c\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u7528\u4e8e\u65e5\u5fd7\u8bb0\u5f55\u7684\u76ee\u7684\u3002\u5982\u679c\u4f60\u60f3\u4f7f\u7528\u7279\u5b9a\u7684\u5206\u9694\u7b26\u5c06String\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5b57\u7b26\u4e32\u5143\u7d20\u7ec4\u5408\u8d77\u6765\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u4f7f\u7528convertStringArrayToString(String[] strArr, String delimiter)\u65b9\u6cd5\u6765\u8fd4\u56de\u7ec4\u5408\u540e\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n<h3>Java\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32\u793a\u4f8b<\/h3>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u5c06\u6211\u4eec\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\u6269\u5c55\u5230\u4e0e\u4efb\u4f55\u5176\u4ed6\u81ea\u5b9a\u4e49\u7c7b\u4e00\u8d77\u4f7f\u7528\u7684\u5b57\u7b26\u4e32\u793a\u4f8b\uff0c\u4e0b\u9762\u662f\u5b9e\u73b0\u7684\u65b9\u5f0f\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.util;\r\n\r\nimport java.util.Arrays;\r\n\r\npublic class JavaArrayToString {\r\n\r\n    public static void main(String[] args) {\r\n        A[] arr = { new A(\"1\"), new A(\"2\"), new A(\"3\") };\r\n\r\n        \/\/ \u9ed8\u8ba4\u7684toString()\u65b9\u6cd5\r\n        System.out.println(arr.toString());\r\n\r\n        \/\/ \u4f7f\u7528Arrays.toString()\u6253\u5370\u5bf9\u8c61\u6570\u7ec4\u5185\u5bb9\r\n        System.out.println(Arrays.toString(arr));\r\n\r\n        \/\/ \u5c06\u5bf9\u8c61\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\r\n        System.out.println(convertObjectArrayToString(arr, \",\"));\r\n    }\r\n\r\n    private static String convertObjectArrayToString(Object[] arr, String delimiter) {\r\n        StringBuilder sb = new StringBuilder();\r\n        for (Object obj : arr)\r\n            sb.append(obj.toString()).append(delimiter);\r\n        return sb.substring(0, sb.length() - 1);\r\n\r\n    }\r\n\r\n}\r\n\r\nclass A {\r\n    private String name;\r\n\r\n    public A(String name) {\r\n        this.name = name;\r\n    }\r\n\r\n    @Override\r\n    public String toString() {\r\n        System.out.println(\"A toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\");\r\n        return this.name;\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0aJava\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32\u793a\u4f8b\u7a0b\u5e8f\u4ea7\u751f\u7684\u8f93\u51fa\u662f\uff1a<\/p>\n<pre class=\"post-pre\"><code>[Lcom.Olivia.util.A;@7852e922\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\n[1, 2, 3]\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\nA toString()\u65b9\u6cd5\u88ab\u8c03\u7528!!\r\n1,2,3\r\n<\/code><\/pre>\n<p>\u6240\u4ee5\u6211\u4eec\u770b\u4e86\u5982\u4f55\u5c06Java String\u6570\u7ec4\u8f6c\u6362\u4e3aString\uff0c\u7136\u540e\u5c06\u5176\u6269\u5c55\u4e3a\u4e0e\u81ea\u5b9a\u4e49\u5bf9\u8c61\u4e00\u8d77\u4f7f\u7528\u3002\u8fd9\u5c31\u662f\u5c06Java\u6570\u7ec4\u8f6c\u6362\u4e3aString\u7684\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u5728\u6211\u4eec\u7684 GitHub \u4ee3\u7801\u4ed3\u5e93\u4e2d\u67e5\u770b\u66f4\u591a\u7684 Java \u6838\u5fc3\u793a\u4f8b\u3002<\/p>\n<p>\u53c2\u8003\uff1aJava\u6570\u7ec4toString API\u6587\u6863<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5c06Java\u4e2d\u7684String\u6570\u7ec4\u8f6c\u5316\u4e3aString\u7c7b\u578b\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002 \u4eca\u5929\u6211\u4eec\u5c06\u7814\u7a76\u5982\u4f55\u5c06 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[189,183,181,1461,184],"class_list":{"0":"post-479","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","9":"tag-181","10":"tag-1461","11":"tag-184"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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