HTTP Status 415 – Unsupported Media Type解决方案之一

悠悠 2022-04-23 04:34 498阅读 0赞

#### 在json数据传输的时候，往后端传输json的时候爆了错误如下： ####

<!doctype html><html lang="en"><head><title>HTTP Status 415 – Unsupported Media Type</title><style 
    type="text/css">h1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} h2
     {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} h3 {font-
     family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} body {font-
     family:Tahoma,Arial,sans-serif;color:black;background-color:white;} b {font-family:Tahoma,Arial,sans-
     serif;color:white;background-color:#525D76;} p {font-family:Tahoma,Arial,sans-
     serif;background:white;color:black;font-size:12px;} a {color:black;} a.name {color:black;} .line 
     {height:1px;background-color:#525D76;border:none;}</style></head><body><h1>HTTP Status 415 – 
     Unsupported Media Type</h1><hr class="line" /><p><b>Type</b> Status Report</p><p><b>Description</b> The 
     origin server is refusing to service the request because the payload is in a format not supported by this method on 
     the target resource.</p><hr class="line" /><h3>Apache Tomcat/8.5.23</h3></body></html>

主要错误：HTTP Status 415 – Unsupported Media Type  
网上搜索415错误，大都是追加  
httpURLConnection.setRequestProperty(“content-type”, “application/json;charset=UTF-8”);

，未有什么作用。

controller层代码：

@RequestMapping(value = "/testAcceptJson", method = RequestMethod.POST)
        @ResponseBody
        public String getTest(HttpServletRequest request, @RequestBody Map<String,Object> frontData){ 
            System.out.println(frontData);
            return  "asd";
        }

用Map接受json格式，会报错，换成String格式则不会。@RequestBody 这个注解多用于json格式的交互，但是默认可以用bean和String来接受json。不支持Map接收，但在大多说开发的环境，希望用Map来接受

#### 解决方案 ####

追加json全家桶jar包，之前我只引了一个基础包。所以绑定报错。

<dependency>
          <groupId>org.codehaus.jackson</groupId>
          <artifactId>jackson-mapper-asl</artifactId>
          <version>1.9.13</version>
        </dependency>
    
        <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>fastjson</artifactId>
          <version>1.2.3</version>
        </dependency>
    
       <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-annotations</artifactId>
          <version>${jackson.version}</version>
        </dependency>
            <dependency>
              <groupId>com.fasterxml.jackson.core</groupId>
              <artifactId>jackson-core</artifactId>
              <version>${jackson.version}</version>
            </dependency>
            <dependency>
              <groupId>com.fasterxml.jackson.core</groupId>
              <artifactId>jackson-databind</artifactId>
              <version>${jackson.version}</version>
            </dependency>

大功告成~~