java 将json字串转成复杂对象

柔情只为你懂 2021-05-12 11:50 632阅读 0赞

当Json字串需要生成复杂Java对象时，可参照如下代码映射生成。

需要如下jar包：

commons-beanutils-1.8.3.jar

commons-collections-3.2.1.jar

commons-lang-2.6.jar

commons-logging-1.1.1.jar

ezmorph-1.0.6.jar

json-lib-2.1-jdk15.jar

![复制代码][copycode.gif]

1 String jsonString = "  
 2 \[      
 3 \{"author":"7","id":358,"title":"More of us","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05150720ii67.jpg"\}\],"path":"ip"\},      
 4 \{"author":"6","id":357,"title":"Video Gallery","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05150657mgpk.jpg"\}\],"path":"ip"\},      
 5 \{"author":"5","id":356,"title":"WATS Fun","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05150608s68h.jpg"\}\],"path":"ip"\},      
 6 \{"author":"4","id":355,"title":"Health and Beauty Tips","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05150146mrqo.jpg"\}\],"path":"ip"\},      
 7 \{"author":"2","id":354,"title":"Watsons Card Members","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05145320s6u8.jpg"\}\],"path":"ip"\},      
 8 \{"author":"1","id":353,"title":"Only @ Watsons","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05145051bn9c.jpg"\}\],"path":"ip"\},      
 9 \{"author":"0","id":351,"title":"WATS HOT","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05143251ewdl.jpg"\}\],"path":"ip"\},      
10 \{"author":"3","id":350,"title":"Pharmacy Services","pictures":\[\{"description":"","imgPath":"/cms/u/cms/www/201203/05143239whnz.jpg"\}\],"path":"ip"\}      
11 \]";  
12   
13 JSONArray ja = JSONArray.fromObject(jsonString);  
14   
15 Map<String, Class<pictures>> classMap =  new HashMap<String, Class<pictures>>();   
16 classMap.put("pictures", pictures. class);   
17 List<Content> list = JSONArray.toList(ja, Content. class, classMap);

![复制代码][copycode.gif]

1  public  class Content \{  
 2      private String author;  
 3      private String id;  
 4      private String title;  
 5      private List<pictures> pictures;  
 6      private String path;  
 7      public String getAuthor() \{  
 8          return author;  
 9     \}  
10      public  void setAuthor(String author) \{  
11          this.author = author;  
12     \}  
13      public String getId() \{  
14          return id;  
15     \}  
16      public  void setId(String id) \{  
17          this.id = id;  
18     \}  
19      public String getTitle() \{  
20          return title;  
21     \}  
22      public  void setTitle(String title) \{  
23          this.title = title;  
24     \}  
25      public List<pictures> getPictures() \{  
26          return pictures;  
27     \}  
28      public  void setPictures(List<pictures> pictures) \{  
29          this.pictures = pictures;  
30     \}  
31      public String getPath() \{  
32          return path;  
33     \}  
34      public  void setPath(String path) \{  
35          this.path = path;  
36     \}  
37 \}

![复制代码][copycode.gif]

1  public  class pictures \{

2     private String description;

3     private String imgPath;  
 4   
 5     public String getDescription() \{  
 6     return description;  
 7     \}  
 8   
 9     public void setDescription(String description) \{  
10     this.description = description;  
11     \}  
12   
13     public String getImgPath() \{  
14     return imgPath;  
15     \}  
16   
17     public void setImgPath(String imgPath) \{  
18     this.imgPath = imgPath;  
19     \}  
20 \}

[copycode.gif]: /images/20210511/640b63a49e5f4b6ea83861ded674edd9.png