|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
package com.cq2022.zago.base.util;import java.io.filereader;import java.io.filewriter;import java.io.ioexception;import java.io.stringwriter;import java.util.list;import java.util.map;import org.codehaus.jackson.jsonfactory;import org.codehaus.jackson.jsongenerationexception;import org.codehaus.jackson.jsongenerator;import org.codehaus.jackson.jsonnode;import org.codehaus.jackson.jsonparseexception;import org.codehaus.jackson.map.jsonmappingexception;import org.codehaus.jackson.map.objectmapper;import org.codehaus.jackson.map.serializationconfig;import org.codehaus.jackson.map.annotate.jsonserialize;import com.alibaba.fastjson.jsonarray;/** * json工具类，实现json与java bean的互相转换 */public class jsonutils { private static objectmapper objectmapper = new objectmapper(); private static jsonfactory jsonfactory = new jsonfactory(); static { objectmapper.configure(serializationconfig.feature.write_null_map_values, false); objectmapper.setserializationinclusion(jsonserialize.inclusion.non_null); } /** * 泛型返回，json字符串转对象 * @param jsonasstring * @param pojoclass * @return * @throws jsonmappingexception * @throws jsonparseexception * @throws ioexception */ public static <t> t fromjson(string jsonasstring, class<t> pojoclass) throws jsonmappingexception, jsonparseexception, ioexception { return objectmapper.readvalue(jsonasstring, pojoclass); } public static <t> t fromjson(filereader fr, class<t> pojoclass) throws jsonparseexception, ioexception { return objectmapper.readvalue(fr, pojoclass); } /** * object对象转json * @param pojo * @return * @throws jsonmappingexception * @throws jsongenerationexception * @throws ioexception */ public static string tojson(object pojo) throws jsonmappingexception, jsongenerationexception, ioexception { return tojson(pojo, false); } public static string tojson(object pojo, boolean prettyprint) throws jsonmappingexception, jsongenerationexception, ioexception { stringwriter sw = new stringwriter(); jsongenerator jg = jsonfactory.createjsongenerator(sw); if (prettyprint) { jg.usedefaultprettyprinter(); } objectmapper.writevalue(jg, pojo); return sw.tostring(); } public static void tojson(object pojo, filewriter fw, boolean prettyprint) throws jsonmappingexception, jsongenerationexception, ioexception { jsongenerator jg = jsonfactory.createjsongenerator(fw); if (prettyprint) { jg.usedefaultprettyprinter(); } objectmapper.writevalue(jg, pojo); } /** * json字符串转map * @param jsonstr * @return * @throws ioexception */ public static map<string, object> parsemap(string jsonstr) throws ioexception { map<string, object> map = objectmapper.readvalue(jsonstr, map.class); return map; } public static jsonnode parse(string jsonstr) throws ioexception { jsonnode node = null; node = objectmapper.readtree(jsonstr); return node; } public static objectmapper getobjectmapper() { return objectmapper; } /** * json字符串转 list对象 * @param str json字符串 * @param clazz 转换的类型 * @return */ public static <t> list<t> fromlistjson(string str,class<t> clazz){ return jsonarray.parsearray(str, clazz); }} |
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，谢谢大家对服务器之家的支持。如果你想了解更多相关内容请查看下面相关链接
原文链接：https://blog.csdn.net/moneyshi/article/details/44852343
