Android Post Json数据乱码问题

客官°小女子只卖身不卖艺 2022-08-20 09:16 156阅读 0赞

这两天在做注册功能时，昵称里有汉字，tomcat服务器后台日志及数据库的汉字都显示?问号。服务器是CentOS 7.0, 将系统语言配置成 LANG=zh\_CN.UTF-8，服务器端代码的web.xml中已经添加了org.springframework.web.filter.CharacterEncodingFilter的Filter。结果还是乱码，问题可能出在Android客户端上。网上查了些资料，并尝试了更改不同位置的代码，定位到了问题。

Json数据如下格式：

{"phone":"18688888888","passwd":"123456","nickname":"汉字","verifycode":"2769"}

private static final String APPLICATION_JSON = "application/json;charset=utf-8";
    
    public static <T extends Result> T postJson(String url, String postBodyJson, Class<T> clazz) throws IOException {
            if (StringUtils.isEmpty(url) || StringUtils.isEmpty(postBodyJson)) {
                Log.e(TAG, "url/postBodyJson should not be null");
                return null;
            }
    
    	DefaultHttpClient httpClient = getHttpClient();
    	httpClient.getParams().setIntParameter(HttpConnectionParams.CONNECTION_TIMEOUT, TIMEOUT);
            httpClient.getParams().setIntParameter(HttpConnectionParams.SO_TIMEOUT, TIMEOUT);
    
            HttpPost httpPost = new HttpPost(url);
    
            StringEntity stringEntity = new StringEntity(postBodyJson);
            stringEntity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON));
            httpPost.setEntity(stringEntity);
    
            httpPost.setHeader(HTTP.USER_AGENT, "xxx/1.0");
            httpPost.setHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON);
            httpPost.setHeader("Accept", APPLICATION_JSON);
    
            PersistentCookieStore cookieStore = MyFragment.getInstance().getCookieStore();
            httpClient.setCookieStore(cookieStore);
    
            HttpResponse response = httpClient.execute(httpPost);
            int code = response.getStatusLine().getStatusCode();
    
            if (HttpStatus.SC_OK == code) {
    
                //Login succeed
                if (StringUtils.isNotEmpty(url) && url.contains(Config.REQUEST_URL_LOGIN)) {
                    //Save cookies
                    List<Cookie> cookies = httpClient.getCookieStore().getCookies();
    
                    for (Cookie cookie : cookies) {
                        cookieStore.addCookie(cookie);
                    }
                }
    
                String rspStr = EntityUtils.toString(response.getEntity(), HTTP.UTF_8);
                Log.d(TAG, rspStr);
    
                T result = null;
                try {
                    result = JSONHelper.parseObject(rspStr, clazz);
                } catch (JSONException e) {
                    e.printStackTrace();
                }
    
                return result;
    
            } else if (HttpStatus.SC_UNAUTHORIZED == code) {
    	    throw new UnauthorizedException("Unauthorized. Need to login again.");
    	} else {
                throw new IOException("ERROR: rspCode=" + code + "-" + response.getEntity().toString());
            }
    }

尝试了增加声明utf-8的header和stringEntity.setContentEncoding之后，问题依旧。

其中，如下一行

StringEntity stringEntity = new StringEntity(postBodyJson);

增加UTF-8编码后，再测试数据库和tomcat log已经变成了汉字，问题解决。

StringEntity stringEntity = new StringEntity(postBodyJson, "UTF-8"); //不带UTF-8，汉字会是乱码

参考：

http://blog.csdn.net/bonnshore/article/details/18327881

http://www.jb51.net/article/49132.htm

http://chaico.iteye.com/blog/1954128