后台报错java.lang.IllegalArgumentException: Invalid character found in the request target.

问题描述：启动项目后，当点击页面某一个按钮时，项目出错并且后台报java.lang.IllegalArgumentException: Invalid character found in the request target.这个错误

解决方法：

当在浏览器中访问时 URL中带有特殊字符，如花括号冒号时，就会出现这个错误。例如：http://localhost:9876/test.do?{num:223}

第一种方法：

利用ajax，使用 Post 方法提交数据

第二种方法：

去除URL中的特殊字符

//对请求地址进行加密
var jsonStr = JSON.stringify("json格式字符串");
varurl = contextPath + "/test/demo.do?queryParams="+jsonStr;
window.location.href = encodeURI(url);

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后台报错java.lang.IllegalArgumentException: Invalid character found in the request target.

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