解析JSON字符串报错：com.fasterxml.jackson.core.JsonParseException: Unexpected character (‘‘‘ (code 39)): was

1、报错信息

我的JSON字符串样式：生成的JSON字符串是单引号的，不是双引号

使用ObjectMapper的readValue反序列化的时候，报错。这是因为ObjectMapper默认不支持解析单引号的json字符串，错误代码如下

@RequestMapping("/commonQuestion7")
@ResponseBody
public  void  commonQuestion7() throws Exception{
    ObjectMapper mapper = new ObjectMapper();
    String param="{'stu_id':'1001','stu_name':'晓春'}";
    //将字符串转换为对象
    Student stu=mapper.readValue(param,Student.class); 
}

3、解决办法

通过配置告诉ObjectMapper，单引号可解析

配置代码：mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);

正确代码如下

@RequestMapping("/commonQuestion7")
@ResponseBody
public  void  commonQuestion7() throws Exception{
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(JsonParser.Feature.ALLOW_SINGLE_QUOTES, true);
    String param="{'stu_id':'1001','stu_name':'晓春'}";
    //将字符串转换为对象
    Student stu=mapper.readValue(param,Student.class); 
}